125131172 has 12 divisors (see below), whose sum is σ = 226530780. Its totient is φ = 60408096.

The previous prime is 125131147. The next prime is 125131177. The reversal of 125131172 is 271131521.

It can be written as a sum of positive squares in 2 ways, for example, as 34386496 + 90744676 = 5864^2 + 9526^2 .

It is not an unprimeable number, because it can be changed into a prime (125131177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539243 + ... + 539474.

It is an arithmetic number, because the mean of its divisors is an integer number (18877565).

Almost surely, 2^125131172 is an apocalyptic number.

It is an amenable number.

125131172 is a deficient number, since it is larger than the sum of its proper divisors (101399608).

125131172 is a wasteful number, since it uses less digits than its factorization.

125131172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1078750 (or 1078748 counting only the distinct ones).

The product of its digits is 420, while the sum is 23.

The square root of 125131172 is about 11186.2045395210. The cubic root of 125131172 is about 500.1748348584.

Adding to 125131172 its reverse (271131521), we get a palindrome (396262693).

It can be divided in two parts, 1251 and 31172, that added together give a palindrome (32423).

The spelling of 125131172 in words is "one hundred twenty-five million, one hundred thirty-one thousand, one hundred seventy-two".