2931252157 has 2 divisors, whose sum is σ = 2931252158. Its totient is φ = 2931252156.

The previous prime is 2931252139. The next prime is 2931252179. The reversal of 2931252157 is 7512521392.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2347014916 + 584237241 = 48446^2 + 24171^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2931252157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2931252187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1465626078 + 1465626079.

It is an arithmetic number, because the mean of its divisors is an integer number (1465626079).

Almost surely, 2^2931252157 is an apocalyptic number.

It is an amenable number.

2931252157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2931252157 is an equidigital number, since it uses as much as digits as its factorization.

2931252157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37800, while the sum is 37.

The square root of 2931252157 is about 54141.0394894668. The cubic root of 2931252157 is about 1431.1474899675.

The spelling of 2931252157 in words is "two billion, nine hundred thirty-one million, two hundred fifty-two thousand, one hundred fifty-seven".