125978424 has 192 divisors, whose sum is σ = 386104320. Its totient is φ = 34003200.

The previous prime is 125978399. The next prime is 125978441. The reversal of 125978424 is 424879521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1774309 + ... + 1774379.

It is an arithmetic number, because the mean of its divisors is an integer number (2010960).

Almost surely, 2^125978424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125978424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193052160).

125978424 is an abundant number, since it is smaller than the sum of its proper divisors (260125896).

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

125978424 is a wasteful number, since it uses less digits than its factorization.

125978424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 147 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 125978424 is about 11224.0110477494. The cubic root of 125978424 is about 501.3011762766.

The spelling of 125978424 in words is "one hundred twenty-five million, nine hundred seventy-eight thousand, four hundred twenty-four".