125521338 has 16 divisors (see below), whose sum is σ = 259699680. Its totient is φ = 40397616.

The previous prime is 125521337. The next prime is 125521369. The reversal of 125521338 is 833125521.

It is not an unprimeable number, because it can be changed into a prime (125521337) 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, 360520 + ... + 360867.

It is an arithmetic number, because the mean of its divisors is an integer number (16231230).

Almost surely, 2^125521338 is an apocalyptic number.

125521338 is an abundant number, since it is smaller than the sum of its proper divisors (134178342).

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

125521338 is a wasteful number, since it uses less digits than its factorization.

125521338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721421.

The product of its digits is 7200, while the sum is 30.

The square root of 125521338 is about 11203.6305722743. The cubic root of 125521338 is about 500.6941531901.

Adding to 125521338 its reverse (833125521), we get a palindrome (958646859).

The spelling of 125521338 in words is "one hundred twenty-five million, five hundred twenty-one thousand, three hundred thirty-eight".