3125620131 has 4 divisors (see below), whose sum is σ = 4167493512. Its totient is φ = 2083746752.

The previous prime is 3125620129. The next prime is 3125620133. The reversal of 3125620131 is 1310265213.

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

It is an interprime number because it is at equal distance from previous prime (3125620129) and next prime (3125620133).

It is a cyclic number.

It is not a de Polignac number, because 3125620131 - 2¹ = 3125620129 is a prime.

It is a super-2 number, since 2×3125620131² = 19539002406624914322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3125620133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 520936686 + ... + 520936691.

It is an arithmetic number, because the mean of its divisors is an integer number (1041873378).

Almost surely, 2^3125620131 is an apocalyptic number.

3125620131 is a deficient number, since it is larger than the sum of its proper divisors (1041873381).

3125620131 is a wasteful number, since it uses less digits than its factorization.

3125620131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041873380.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 3125620131 is about 55907.2457826354. The cubic root of 3125620131 is about 1462.1055706592.

Adding to 3125620131 its reverse (1310265213), we get a palindrome (4435885344).

The spelling of 3125620131 in words is "three billion, one hundred twenty-five million, six hundred twenty thousand, one hundred thirty-one".