157159537 has 2 divisors, whose sum is σ = 157159538. Its totient is φ = 157159536.

The previous prime is 157159523. The next prime is 157159549. The reversal of 157159537 is 735951751.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 144937521 + 12222016 = 12039^2 + 3496^2 .

It is a cyclic number.

It is not a de Polignac number, because 157159537 - 2¹¹ = 157157489 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 157159493 and 157159502.

It is not a weakly prime, because it can be changed into another prime (157159337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78579768 + 78579769.

It is an arithmetic number, because the mean of its divisors is an integer number (78579769).

Almost surely, 2^157159537 is an apocalyptic number.

It is an amenable number.

157159537 is a deficient number, since it is larger than the sum of its proper divisors (1).

157159537 is an equidigital number, since it uses as much as digits as its factorization.

157159537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165375, while the sum is 43.

The square root of 157159537 is about 12536.3286890541. The cubic root of 157159537 is about 539.6517381784.

It can be divided in two parts, 15715 and 9537, that added together give a palindrome (25252).

The spelling of 157159537 in words is "one hundred fifty-seven million, one hundred fifty-nine thousand, five hundred thirty-seven".