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73025131 is a prime number
BaseRepresentation
bin1000101101001…
…00011001101011
312002102001122111
410112210121223
5122143301011
611125103151
71544463154
oct426443153
9162361574
1073025131
1138247953
1220557ab7
131218a74a
1499ac92b
156627121
hex45a466b

73025131 has 2 divisors, whose sum is σ = 73025132. Its totient is φ = 73025130.

The previous prime is 73025129. The next prime is 73025167. The reversal of 73025131 is 13152037.

It is a weak prime.

It is an emirp because it is prime and its reverse (13152037) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 73025131 - 21 = 73025129 is a prime.

It is a super-2 number, since 2×730251312 = 10665339515134322, which contains 22 as substring.

Together with 73025129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73025101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36512565 + 36512566.

It is an arithmetic number, because the mean of its divisors is an integer number (36512566).

Almost surely, 273025131 is an apocalyptic number.

73025131 is a deficient number, since it is larger than the sum of its proper divisors (1).

73025131 is an equidigital number, since it uses as much as digits as its factorization.

73025131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 73025131 is about 8545.4742993002. The cubic root of 73025131 is about 417.9818734842.

Adding to 73025131 its reverse (13152037), we get a palindrome (86177168).

The spelling of 73025131 in words is "seventy-three million, twenty-five thousand, one hundred thirty-one".