125431130 has 32 divisors (see below), whose sum is σ = 248505408. Its totient is φ = 45203200.

The previous prime is 125431127. The next prime is 125431139. The reversal of 125431130 is 31134521.

It is not an unprimeable number, because it can be changed into a prime (125431139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7385 + ... + 17475.

It is an arithmetic number, because the mean of its divisors is an integer number (7765794).

Almost surely, 2^125431130 is an apocalyptic number.

125431130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125431130 is a deficient number, since it is larger than the sum of its proper divisors (123074278).

125431130 is a wasteful number, since it uses less digits than its factorization.

125431130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10222.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 125431130 is about 11199.6040108568. The cubic root of 125431130 is about 500.5741803814.

Adding to 125431130 its reverse (31134521), we get a palindrome (156565651).

The spelling of 125431130 in words is "one hundred twenty-five million, four hundred thirty-one thousand, one hundred thirty".