125844538 has 4 divisors (see below), whose sum is σ = 188766810. Its totient is φ = 62922268.

The previous prime is 125844529. The next prime is 125844577. The reversal of 125844538 is 835448521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 115713049 + 10131489 = 10757^2 + 3183^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 125844538.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31461133 + ... + 31461136.

Almost surely, 2^125844538 is an apocalyptic number.

125844538 is a deficient number, since it is larger than the sum of its proper divisors (62922272).

125844538 is an equidigital number, since it uses as much as digits as its factorization.

125844538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62922271.

The product of its digits is 153600, while the sum is 40.

The square root of 125844538 is about 11218.0451951309. The cubic root of 125844538 is about 501.1235241626.

It can be divided in two parts, 1258 and 44538, that added together give a square (45796 = 214²).

The spelling of 125844538 in words is "one hundred twenty-five million, eight hundred forty-four thousand, five hundred thirty-eight".