Search a number
-
+
151545121 = 7131987649
BaseRepresentation
bin10010000100001…
…10010100100001
3101120011021211021
421002012110201
5302243420441
623012045441
73520053340
oct1102062441
9346137737
10151545121
11785a8102
1242903881
1325520290
14161abb57
15d4873d1
hex9086521

151545121 has 16 divisors (see below), whose sum is σ = 196336000. Its totient is φ = 113591808.

The previous prime is 151545077. The next prime is 151545127. The reversal of 151545121 is 121545151.

It is a cyclic number.

It is not a de Polignac number, because 151545121 - 223 = 143156513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (151545127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42096 + ... + 45553.

It is an arithmetic number, because the mean of its divisors is an integer number (12271000).

Almost surely, 2151545121 is an apocalyptic number.

It is an amenable number.

151545121 is a deficient number, since it is larger than the sum of its proper divisors (44790879).

151545121 is a wasteful number, since it uses less digits than its factorization.

151545121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87688.

The product of its digits is 1000, while the sum is 25.

The square root of 151545121 is about 12310.3664039703. The cubic root of 151545121 is about 533.1474294345.

The spelling of 151545121 in words is "one hundred fifty-one million, five hundred forty-five thousand, one hundred twenty-one".

Divisors: 1 7 13 19 91 133 247 1729 87649 613543 1139437 1665331 7976059 11657317 21649303 151545121