125039830 has 8 divisors (see below), whose sum is σ = 225071712. Its totient is φ = 50015928.

The previous prime is 125039819. The next prime is 125039899. The reversal of 125039830 is 38930521.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 125039792 and 125039801.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6251982 + ... + 6252001.

It is an arithmetic number, because the mean of its divisors is an integer number (28133964).

Almost surely, 2^125039830 is an apocalyptic number.

125039830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

125039830 is a deficient number, since it is larger than the sum of its proper divisors (100031882).

125039830 is a wasteful number, since it uses less digits than its factorization.

125039830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12503990.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 125039830 is about 11182.1209973779. The cubic root of 125039830 is about 500.0531010270.

The spelling of 125039830 in words is "one hundred twenty-five million, thirty-nine thousand, eight hundred thirty".