125818442 has 8 divisors (see below), whose sum is σ = 188781600. Its totient is φ = 62891244.

The previous prime is 125818421. The next prime is 125818447. The reversal of 125818442 is 244818521.

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

It is not an unprimeable number, because it can be changed into a prime (125818447) 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, 2909 + ... + 16127.

It is an arithmetic number, because the mean of its divisors is an integer number (23597700).

Almost surely, 2^125818442 is an apocalyptic number.

125818442 is a deficient number, since it is larger than the sum of its proper divisors (62963158).

125818442 is a wasteful number, since it uses less digits than its factorization.

125818442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17980.

The product of its digits is 20480, while the sum is 35.

The square root of 125818442 is about 11216.8820088294. The cubic root of 125818442 is about 501.0888829465.

The spelling of 125818442 in words is "one hundred twenty-five million, eight hundred eighteen thousand, four hundred forty-two".