125431300 has 36 divisors (see below), whose sum is σ = 278833716. Its totient is φ = 48947200.

The previous prime is 125431291. The next prime is 125431357. The reversal of 125431300 is 3134521.

It can be written as a sum of positive squares in 6 ways, for example, as 13410244 + 112021056 = 3662^2 + 10584^2 .

It is a super-2 number, since 2×125431300² = 31466022039380000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11197 + ... + 19396.

It is an arithmetic number, because the mean of its divisors is an integer number (7745381).

Almost surely, 2^125431300 is an apocalyptic number.

125431300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125431300 is an abundant number, since it is smaller than the sum of its proper divisors (153402416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125431300 is a wasteful number, since it uses less digits than its factorization.

125431300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30648 (or 30641 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 125431300 is about 11199.6116004083. The cubic root of 125431300 is about 500.5744065283.

Adding to 125431300 its reverse (3134521), we get a palindrome (128565821).

The spelling of 125431300 in words is "one hundred twenty-five million, four hundred thirty-one thousand, three hundred".