125631104 has 16 divisors (see below), whose sum is σ = 250280970. Its totient is φ = 62815488.

The previous prime is 125631089. The next prime is 125631113. The reversal of 125631104 is 401136521.

It can be written as a sum of positive squares in only one way, i.e., 121000000 + 4631104 = 11000^2 + 2152^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a self number, because there is not a number n which added to its sum of digits gives 125631104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490619 + ... + 490874.

Almost surely, 2^125631104 is an apocalyptic number.

It is an amenable number.

125631104 is a deficient number, since it is larger than the sum of its proper divisors (124649866).

125631104 is an frugal number, since it uses more digits than its factorization.

125631104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 981507 (or 981495 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 125631104 is about 11208.5281817016. The cubic root of 125631104 is about 500.8400598086.

Adding to 125631104 its reverse (401136521), we get a palindrome (526767625).

The spelling of 125631104 in words is "one hundred twenty-five million, six hundred thirty-one thousand, one hundred four".