125044989 has 8 divisors (see below), whose sum is σ = 170604192. Its totient is φ = 81424560.

The previous prime is 125044973. The next prime is 125044991. The reversal of 125044989 is 989440521.

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

It is not a de Polignac number, because 125044989 - 2⁴ = 125044973 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 125044989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125044189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 484542 + ... + 484799.

It is an arithmetic number, because the mean of its divisors is an integer number (21325524).

Almost surely, 2^125044989 is an apocalyptic number.

It is an amenable number.

125044989 is a deficient number, since it is larger than the sum of its proper divisors (45559203).

125044989 is an equidigital number, since it uses as much as digits as its factorization.

125044989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969387.

The product of its (nonzero) digits is 103680, while the sum is 42.

The square root of 125044989 is about 11182.3516757433. The cubic root of 125044989 is about 500.0599781383.

The spelling of 125044989 in words is "one hundred twenty-five million, forty-four thousand, nine hundred eighty-nine".