157620035431 has 2 divisors, whose sum is σ = 157620035432. Its totient is φ = 157620035430.

The previous prime is 157620035423. The next prime is 157620035453. The reversal of 157620035431 is 134530026751.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 157620035431 - 2³ = 157620035423 is a prime.

It is a super-2 number, since 2×157620035431² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (157620035471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78810017715 + 78810017716.

It is an arithmetic number, because the mean of its divisors is an integer number (78810017716).

Almost surely, 2^157620035431 is an apocalyptic number.

157620035431 is a deficient number, since it is larger than the sum of its proper divisors (1).

157620035431 is an equidigital number, since it uses as much as digits as its factorization.

157620035431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 157620035431 in words is "one hundred fifty-seven billion, six hundred twenty million, thirty-five thousand, four hundred thirty-one".