2131524245 has 16 divisors (see below), whose sum is σ = 2592741312. Its totient is φ = 1682010240.

The previous prime is 2131524229. The next prime is 2131524247. The reversal of 2131524245 is 5424251312.

It is not a de Polignac number, because 2131524245 - 2⁴ = 2131524229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131524247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 283049 + ... + 290481.

It is an arithmetic number, because the mean of its divisors is an integer number (162046332).

Almost surely, 2^2131524245 is an apocalyptic number.

It is an amenable number.

2131524245 is a deficient number, since it is larger than the sum of its proper divisors (461217067).

2131524245 is an equidigital number, since it uses as much as digits as its factorization.

2131524245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8212.

The product of its digits is 9600, while the sum is 29.

The square root of 2131524245 is about 46168.4334258809. The cubic root of 2131524245 is about 1286.9551899863.

Adding to 2131524245 its reverse (5424251312), we get a palindrome (7555775557).

The spelling of 2131524245 in words is "two billion, one hundred thirty-one million, five hundred twenty-four thousand, two hundred forty-five".