131625004 has 24 divisors (see below), whose sum is σ = 268853760. Its totient is φ = 55209936.

The previous prime is 131624993. The next prime is 131625019. The reversal of 131625004 is 400526131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48694 + ... + 51325.

It is an arithmetic number, because the mean of its divisors is an integer number (11202240).

Almost surely, 2^131625004 is an apocalyptic number.

131625004 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

131625004 is an abundant number, since it is smaller than the sum of its proper divisors (137228756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131625004 is a wasteful number, since it uses less digits than its factorization.

131625004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100077 (or 100075 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 131625004 is about 11472.7940799092. The cubic root of 131625004 is about 508.6817216050.

The spelling of 131625004 in words is "one hundred thirty-one million, six hundred twenty-five thousand, four".