125874638 has 4 divisors (see below), whose sum is σ = 188811960. Its totient is φ = 62937318.

The previous prime is 125874599. The next prime is 125874643. The reversal of 125874638 is 836478521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 836478521 = 23081 ⋅36241.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 31468658 + ... + 31468661.

It is an arithmetic number, because the mean of its divisors is an integer number (47202990).

Almost surely, 2^125874638 is an apocalyptic number.

125874638 is a deficient number, since it is larger than the sum of its proper divisors (62937322).

125874638 is an equidigital number, since it uses as much as digits as its factorization.

125874638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62937321.

The product of its digits is 322560, while the sum is 44.

The square root of 125874638 is about 11219.3867033809. The cubic root of 125874638 is about 501.1634745540.

The spelling of 125874638 in words is "one hundred twenty-five million, eight hundred seventy-four thousand, six hundred thirty-eight".