125630040 has 32 divisors (see below), whose sum is σ = 376890480. Its totient is φ = 33501312.

The previous prime is 125630039. The next prime is 125630053. The reversal of 125630040 is 40036521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 125629989 and 125630016.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 523339 + ... + 523578.

Almost surely, 2^125630040 is an apocalyptic number.

125630040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125630040 is an abundant number, since it is smaller than the sum of its proper divisors (251260440).

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

125630040 is a wasteful number, since it uses less digits than its factorization.

125630040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1046931 (or 1046927 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 125630040 is about 11208.4807177423. The cubic root of 125630040 is about 500.8386458930.

Adding to 125630040 its reverse (40036521), we get a palindrome (165666561).

The spelling of 125630040 in words is "one hundred twenty-five million, six hundred thirty thousand, forty".