2531245145 has 16 divisors (see below), whose sum is σ = 3568525632. Its totient is φ = 1699296960.

The previous prime is 2531245121. The next prime is 2531245153. The reversal of 2531245145 is 5415421352.

It is not a de Polignac number, because 2531245145 - 2⁸ = 2531244889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1769387 + ... + 1770816.

It is an arithmetic number, because the mean of its divisors is an integer number (223032852).

Almost surely, 2^2531245145 is an apocalyptic number.

It is an amenable number.

2531245145 is a deficient number, since it is larger than the sum of its proper divisors (1037280487).

2531245145 is a wasteful number, since it uses less digits than its factorization.

2531245145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3540232.

The product of its digits is 24000, while the sum is 32.

The square root of 2531245145 is about 50311.4812443442. The cubic root of 2531245145 is about 1362.8395733030.

Adding to 2531245145 its reverse (5415421352), we get a palindrome (7946666497).

The spelling of 2531245145 in words is "two billion, five hundred thirty-one million, two hundred forty-five thousand, one hundred forty-five".