131625345 has 16 divisors (see below), whose sum is σ = 217863360. Its totient is φ = 67779264.

The previous prime is 131625313. The next prime is 131625397. The reversal of 131625345 is 543526131.

It is not a de Polignac number, because 131625345 - 2⁵ = 131625313 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 150859 + ... + 151728.

It is an arithmetic number, because the mean of its divisors is an integer number (13616460).

Almost surely, 2^131625345 is an apocalyptic number.

131625345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

131625345 is a deficient number, since it is larger than the sum of its proper divisors (86238015).

131625345 is a wasteful number, since it uses less digits than its factorization.

131625345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302624.

The product of its digits is 10800, while the sum is 30.

The square root of 131625345 is about 11472.8089411443. The cubic root of 131625345 is about 508.6821608840.

The spelling of 131625345 in words is "one hundred thirty-one million, six hundred twenty-five thousand, three hundred forty-five".