2131153245 has 48 divisors (see below), whose sum is σ = 3984419712. Its totient is φ = 1047530880.

The previous prime is 2131153237. The next prime is 2131153261. The reversal of 2131153245 is 5423511312.

2131153245 is a `hidden beast` number, since 21 + 311 + 5 + 324 + 5 = 666.

It is not a de Polignac number, because 2131153245 - 2³ = 2131153237 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 422790 + ... + 427800.

It is an arithmetic number, because the mean of its divisors is an integer number (83008744).

Almost surely, 2^2131153245 is an apocalyptic number.

It is an amenable number.

2131153245 is a deficient number, since it is larger than the sum of its proper divisors (1853266467).

2131153245 is a wasteful number, since it uses less digits than its factorization.

2131153245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5762 (or 5759 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2131153245 is about 46164.4153542531. The cubic root of 2131153245 is about 1286.8805191523.

Adding to 2131153245 its reverse (5423511312), we get a palindrome (7554664557).

The spelling of 2131153245 in words is "two billion, one hundred thirty-one million, one hundred fifty-three thousand, two hundred forty-five".