157931563 has 2 divisors, whose sum is σ = 157931564. Its totient is φ = 157931562.

The previous prime is 157931539. The next prime is 157931603. The reversal of 157931563 is 365139751.

It is a happy number.

157931563 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (157931603) can be obtained adding 157931563 to its sum of digits (40).

It is a weak prime.

It is an emirp because it is prime and its reverse (365139751) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 157931563 - 2⁵ = 157931531 is a prime.

It is not a weakly prime, because it can be changed into another prime (157931533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78965781 + 78965782.

It is an arithmetic number, because the mean of its divisors is an integer number (78965782).

Almost surely, 2^157931563 is an apocalyptic number.

157931563 is a deficient number, since it is larger than the sum of its proper divisors (1).

157931563 is an equidigital number, since it uses as much as digits as its factorization.

157931563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85050, while the sum is 40.

The square root of 157931563 is about 12567.0825174342. The cubic root of 157931563 is about 540.5339517359.

The spelling of 157931563 in words is "one hundred fifty-seven million, nine hundred thirty-one thousand, five hundred sixty-three".