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151020127 = 314871617
BaseRepresentation
bin10010000000001…
…10001001011111
3101112011121200001
421000012021133
5302130121002
622552515131
73512435626
oct1100061137
9345147601
10151020127
1178279725
12426abaa7
132539832b
14160b26bd
15d3d1a87
hex900625f

151020127 has 4 divisors (see below), whose sum is σ = 155891776. Its totient is φ = 146148480.

The previous prime is 151020119. The next prime is 151020143. The reversal of 151020127 is 721020151.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 721020151 = 1937948429.

It is a cyclic number.

It is not a de Polignac number, because 151020127 - 23 = 151020119 is a prime.

It is a super-2 number, since 2×1510201272 = 45614157518192258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151020157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2435778 + ... + 2435839.

It is an arithmetic number, because the mean of its divisors is an integer number (38972944).

Almost surely, 2151020127 is an apocalyptic number.

151020127 is a deficient number, since it is larger than the sum of its proper divisors (4871649).

151020127 is an equidigital number, since it uses as much as digits as its factorization.

151020127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871648.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 151020127 is about 12289.0246561719. The cubic root of 151020127 is about 532.5310606611.

Adding to 151020127 its reverse (721020151), we get a palindrome (872040278).

The spelling of 151020127 in words is "one hundred fifty-one million, twenty thousand, one hundred twenty-seven".

Divisors: 1 31 4871617 151020127