2151052131 has 4 divisors (see below), whose sum is σ = 2868069512. Its totient is φ = 1434034752.

The previous prime is 2151052097. The next prime is 2151052147. The reversal of 2151052131 is 1312501512.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2151052131 - 2⁹ = 2151051619 is a prime.

It is a super-2 number, since 2×2151052131² = 9254050540559282322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2151052098 and 2151052107.

It is not an unprimeable number, because it can be changed into a prime (2151052171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 358508686 + ... + 358508691.

It is an arithmetic number, because the mean of its divisors is an integer number (717017378).

Almost surely, 2^2151052131 is an apocalyptic number.

2151052131 is a deficient number, since it is larger than the sum of its proper divisors (717017381).

2151052131 is an equidigital number, since it uses as much as digits as its factorization.

2151052131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 717017380.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 2151052131 is about 46379.4365101604. The cubic root of 2151052131 is about 1290.8733806706.

Adding to 2151052131 its reverse (1312501512), we get a palindrome (3463553643).

The spelling of 2151052131 in words is "two billion, one hundred fifty-one million, fifty-two thousand, one hundred thirty-one".