125636434 has 16 divisors (see below), whose sum is σ = 234956736. Its totient is φ = 48949200.

The previous prime is 125636387. The next prime is 125636449. The reversal of 125636434 is 434636521.

It is a self number, because there is not a number n which added to its sum of digits gives 125636434.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407757 + ... + 408064.

It is an arithmetic number, because the mean of its divisors is an integer number (14684796).

Almost surely, 2^125636434 is an apocalyptic number.

125636434 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

125636434 is a deficient number, since it is larger than the sum of its proper divisors (109320302).

125636434 is a wasteful number, since it uses less digits than its factorization.

125636434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815841.

The product of its digits is 51840, while the sum is 34.

The square root of 125636434 is about 11208.7659445632. The cubic root of 125636434 is about 500.8471425550.

The spelling of 125636434 in words is "one hundred twenty-five million, six hundred thirty-six thousand, four hundred thirty-four".