125205404 has 24 divisors (see below), whose sum is σ = 226641408. Its totient is φ = 60459120.

The previous prime is 125205403. The next prime is 125205407. The reversal of 125205404 is 404502521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 125205404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125205401) 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, 96947 + ... + 98229.

It is an arithmetic number, because the mean of its divisors is an integer number (9443392).

Almost surely, 2^125205404 is an apocalyptic number.

It is an amenable number.

125205404 is a deficient number, since it is larger than the sum of its proper divisors (101436004).

125205404 is a wasteful number, since it uses less digits than its factorization.

125205404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2105 (or 2103 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 125205404 is about 11189.5220630731. The cubic root of 125205404 is about 500.2737221251.

Adding to 125205404 its reverse (404502521), we get a palindrome (529707925).

The spelling of 125205404 in words is "one hundred twenty-five million, two hundred five thousand, four hundred four".