152691937 has 2 divisors, whose sum is σ = 152691938. Its totient is φ = 152691936.

The previous prime is 152691907. The next prime is 152691947. The reversal of 152691937 is 739196251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107412496 + 45279441 = 10364^2 + 6729^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152691937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 152691893 and 152691902.

It is not a weakly prime, because it can be changed into another prime (152691907) 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, 76345968 + 76345969.

It is an arithmetic number, because the mean of its divisors is an integer number (76345969).

Almost surely, 2^152691937 is an apocalyptic number.

It is an amenable number.

152691937 is a deficient number, since it is larger than the sum of its proper divisors (1).

152691937 is an equidigital number, since it uses as much as digits as its factorization.

152691937 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102060, while the sum is 43.

The square root of 152691937 is about 12356.8578934938. The cubic root of 152691937 is about 534.4889136083.

The spelling of 152691937 in words is "one hundred fifty-two million, six hundred ninety-one thousand, nine hundred thirty-seven".