157270537 has 2 divisors, whose sum is σ = 157270538. Its totient is φ = 157270536.

The previous prime is 157270517. The next prime is 157270571. The reversal of 157270537 is 735072751.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156025081 + 1245456 = 12491^2 + 1116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-157270537 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 157270496 and 157270505.

It is not a weakly prime, because it can be changed into another prime (157270517) 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, 78635268 + 78635269.

It is an arithmetic number, because the mean of its divisors is an integer number (78635269).

Almost surely, 2^157270537 is an apocalyptic number.

It is an amenable number.

157270537 is a deficient number, since it is larger than the sum of its proper divisors (1).

157270537 is an equidigital number, since it uses as much as digits as its factorization.

157270537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51450, while the sum is 37.

The square root of 157270537 is about 12540.7550410651. The cubic root of 157270537 is about 539.7787582478.

The spelling of 157270537 in words is "one hundred fifty-seven million, two hundred seventy thousand, five hundred thirty-seven".