125240130 has 24 divisors (see below), whose sum is σ = 325624572. Its totient is φ = 33397344.

The previous prime is 125240033. The next prime is 125240131. The reversal of 125240130 is 31042521.

125240130 is a `hidden beast` number, since 12 + 524 + 0 + 130 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 103978809 + 21261321 = 10197^2 + 4611^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (125240131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 695689 + ... + 695868.

Almost surely, 2^125240130 is an apocalyptic number.

125240130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125240130 is an abundant number, since it is smaller than the sum of its proper divisors (200384442).

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

125240130 is a wasteful number, since it uses less digits than its factorization.

125240130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1391570 (or 1391567 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 125240130 is about 11191.0736750323. The cubic root of 125240130 is about 500.3199685299.

Adding to 125240130 its reverse (31042521), we get a palindrome (156282651).

The spelling of 125240130 in words is "one hundred twenty-five million, two hundred forty thousand, one hundred thirty".