125431570 has 32 divisors (see below), whose sum is σ = 246856896. Its totient is φ = 45508800.

The previous prime is 125431567. The next prime is 125431609. The reversal of 125431570 is 75134521.

It is a happy number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 61812 + ... + 63808.

It is an arithmetic number, because the mean of its divisors is an integer number (7714278).

Almost surely, 2^125431570 is an apocalyptic number.

125431570 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125431570 is a deficient number, since it is larger than the sum of its proper divisors (121425326).

125431570 is a wasteful number, since it uses less digits than its factorization.

125431570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2586.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 125431570 is about 11199.6236543912. The cubic root of 125431570 is about 500.5747657023.

The spelling of 125431570 in words is "one hundred twenty-five million, four hundred thirty-one thousand, five hundred seventy".