152689657 has 2 divisors, whose sum is σ = 152689658. Its totient is φ = 152689656.

The previous prime is 152689637. The next prime is 152689703. The reversal of 152689657 is 756986251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 152300281 + 389376 = 12341^2 + 624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-152689657 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 152689657.

It is not a weakly prime, because it can be changed into another prime (152689637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76344828 + 76344829.

It is an arithmetic number, because the mean of its divisors is an integer number (76344829).

Almost surely, 2^152689657 is an apocalyptic number.

It is an amenable number.

152689657 is a deficient number, since it is larger than the sum of its proper divisors (1).

152689657 is an equidigital number, since it uses as much as digits as its factorization.

152689657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 907200, while the sum is 49.

The square root of 152689657 is about 12356.7656366866. The cubic root of 152689657 is about 534.4862532609.

The spelling of 152689657 in words is "one hundred fifty-two million, six hundred eighty-nine thousand, six hundred fifty-seven".