125404 has 12 divisors (see below), whose sum is σ = 222264. Its totient is φ = 61904.

The previous prime is 125399. The next prime is 125407. The reversal of 125404 is 404521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282 + ... + 574.

It is an arithmetic number, because the mean of its divisors is an integer number (18522).

2¹²⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

125404 is a deficient number, since it is larger than the sum of its proper divisors (96860).

125404 is a wasteful number, since it uses less digits than its factorization.

125404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 402 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 125404 is about 354.1242719724. The cubic root of 125404 is about 50.0538087383.

Adding to 125404 its reverse (404521), we get a palindrome (529925).

It can be divided in two parts, 12540 and 4, that added together give a square (12544 = 112²).

The spelling of 125404 in words is "one hundred twenty-five thousand, four hundred four".