152193931 has 2 divisors, whose sum is σ = 152193932. Its totient is φ = 152193930.

The previous prime is 152193929. The next prime is 152193941. The reversal of 152193931 is 139391251.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 152193931 - 2¹ = 152193929 is a prime.

It is a super-2 number, since 2×152193931² = 46325985266465522, which contains 22 as substring.

Together with 152193929, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (152193901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 76096965 + 76096966.

It is an arithmetic number, because the mean of its divisors is an integer number (76096966).

Almost surely, 2^152193931 is an apocalyptic number.

152193931 is a deficient number, since it is larger than the sum of its proper divisors (1).

152193931 is an equidigital number, since it uses as much as digits as its factorization.

152193931 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7290, while the sum is 34.

The square root of 152193931 is about 12336.6904394979. The cubic root of 152193931 is about 533.9072007426.

The spelling of 152193931 in words is "one hundred fifty-two million, one hundred ninety-three thousand, nine hundred thirty-one".