125905398 has 8 divisors (see below), whose sum is σ = 251810808. Its totient is φ = 41968464.

The previous prime is 125905393. The next prime is 125905399. The reversal of 125905398 is 893509521.

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

125905398 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125905393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10492111 + ... + 10492122.

It is an arithmetic number, because the mean of its divisors is an integer number (31476351).

Almost surely, 2^125905398 is an apocalyptic number.

125905398 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

125905398 is a wasteful number, since it uses less digits than its factorization.

125905398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20984238.

The product of its (nonzero) digits is 97200, while the sum is 42.

The square root of 125905398 is about 11220.7574610630. The cubic root of 125905398 is about 501.2042943547.

The spelling of 125905398 in words is "one hundred twenty-five million, nine hundred five thousand, three hundred ninety-eight".