125769438 has 24 divisors (see below), whose sum is σ = 279866808. Its totient is φ = 40789872.

The previous prime is 125769421. The next prime is 125769461. The reversal of 125769438 is 834967521.

It is a junction number, because it is equal to n+sod(n) for n = 125769393 and 125769402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93756 + ... + 95087.

It is an arithmetic number, because the mean of its divisors is an integer number (11661117).

Almost surely, 2^125769438 is an apocalyptic number.

125769438 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

125769438 is an abundant number, since it is smaller than the sum of its proper divisors (154097370).

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

125769438 is a wasteful number, since it uses less digits than its factorization.

125769438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188888 (or 188885 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 125769438 is about 11214.6974100954. The cubic root of 125769438 is about 501.0238194897.

The spelling of 125769438 in words is "one hundred twenty-five million, seven hundred sixty-nine thousand, four hundred thirty-eight".