125243634 has 16 divisors (see below), whose sum is σ = 259125120. Its totient is φ = 40308240.

The previous prime is 125243633. The next prime is 125243639. The reversal of 125243634 is 436342521.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (125243633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359722 + ... + 360069.

It is an arithmetic number, because the mean of its divisors is an integer number (16195320).

Almost surely, 2^125243634 is an apocalyptic number.

125243634 is an abundant number, since it is smaller than the sum of its proper divisors (133881486).

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

125243634 is a wasteful number, since it uses less digits than its factorization.

125243634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719825.

The product of its digits is 17280, while the sum is 30.

The square root of 125243634 is about 11191.2302272806. The cubic root of 125243634 is about 500.3246345126.

The spelling of 125243634 in words is "one hundred twenty-five million, two hundred forty-three thousand, six hundred thirty-four".