125513642 has 8 divisors (see below), whose sum is σ = 188531616. Its totient is φ = 62669772.

The previous prime is 125513629. The next prime is 125513671. The reversal of 125513642 is 246315521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41708 + ... + 44615.

It is an arithmetic number, because the mean of its divisors is an integer number (23566452).

Almost surely, 2^125513642 is an apocalyptic number.

125513642 is a deficient number, since it is larger than the sum of its proper divisors (63017974).

125513642 is an equidigital number, since it uses as much as digits as its factorization.

125513642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87052.

The product of its digits is 7200, while the sum is 29.

The square root of 125513642 is about 11203.2871069164. The cubic root of 125513642 is about 500.6839200801.

The spelling of 125513642 in words is "one hundred twenty-five million, five hundred thirteen thousand, six hundred forty-two".