2152390131 has 8 divisors (see below), whose sum is σ = 3188726160. Its totient is φ = 1434926736.

The previous prime is 2152390127. The next prime is 2152390147. The reversal of 2152390131 is 1310932512.

2152390131 is a `hidden beast` number, since 2 + 1 + 523 + 9 + 0 + 131 = 666.

2152390131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2152390131 - 2² = 2152390127 is a prime.

It is a super-2 number, since 2×2152390131² = 9265566552052394322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 79718153 = 2152390131 / (2 + 1 + 5 + 2 + 3 + 9 + 0 + 1 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 2152390095 and 2152390104.

It is not an unprimeable number, because it can be changed into a prime (2152390231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39859050 + ... + 39859103.

It is an arithmetic number, because the mean of its divisors is an integer number (398590770).

Almost surely, 2^2152390131 is an apocalyptic number.

2152390131 is a deficient number, since it is larger than the sum of its proper divisors (1036336029).

2152390131 is an equidigital number, since it uses as much as digits as its factorization.

2152390131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79718162 (or 79718156 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 2152390131 is about 46393.8587638493. The cubic root of 2152390131 is about 1291.1409753926.

The spelling of 2152390131 in words is "two billion, one hundred fifty-two million, three hundred ninety thousand, one hundred thirty-one".