125038889 has 4 divisors (see below), whose sum is σ = 128088660. Its totient is φ = 121989120.

The previous prime is 125038831. The next prime is 125038897. The reversal of 125038889 is 988830521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 988830521 = 7 ⋅141261503.

It can be written as a sum of positive squares in 2 ways, for example, as 13630864 + 111408025 = 3692^2 + 10555^2 .

It is a cyclic number.

It is not a de Polignac number, because 125038889 - 2²⁰ = 123990313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125037889) 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, 1524824 + ... + 1524905.

It is an arithmetic number, because the mean of its divisors is an integer number (32022165).

Almost surely, 2^125038889 is an apocalyptic number.

It is an amenable number.

125038889 is a deficient number, since it is larger than the sum of its proper divisors (3049771).

125038889 is an equidigital number, since it uses as much as digits as its factorization.

125038889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3049770.

The product of its (nonzero) digits is 138240, while the sum is 44.

The square root of 125038889 is about 11182.0789212024. The cubic root of 125038889 is about 500.0518466237.

The spelling of 125038889 in words is "one hundred twenty-five million, thirty-eight thousand, eight hundred eighty-nine".