125078420 has 24 divisors (see below), whose sum is σ = 263122944. Its totient is φ = 49944096.

The previous prime is 125078417. The next prime is 125078431. The reversal of 125078420 is 24870521.

It is a super-2 number, since 2×125078420² = 31289222299392800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6989 + ... + 17291.

It is an arithmetic number, because the mean of its divisors is an integer number (10963456).

Almost surely, 2^125078420 is an apocalyptic number.

125078420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125078420 is an abundant number, since it is smaller than the sum of its proper divisors (138044524).

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

125078420 is a wasteful number, since it uses less digits than its factorization.

125078420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10919 (or 10917 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 125078420 is about 11183.8463866418. The cubic root of 125078420 is about 500.1045381420.

The spelling of 125078420 in words is "one hundred twenty-five million, seventy-eight thousand, four hundred twenty".