125292889 has 4 divisors (see below), whose sum is σ = 125548560. Its totient is φ = 125037220.

The previous prime is 125292883. The next prime is 125292949. The reversal of 125292889 is 988292521.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 988292521 = 43 ⋅22983547.

It is a cyclic number.

It is not a de Polignac number, because 125292889 - 2⁵ = 125292857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125292883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127099 + ... + 128080.

It is an arithmetic number, because the mean of its divisors is an integer number (31387140).

Almost surely, 2^125292889 is an apocalyptic number.

It is an amenable number.

125292889 is a deficient number, since it is larger than the sum of its proper divisors (255671).

125292889 is an equidigital number, since it uses as much as digits as its factorization.

125292889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255670.

The product of its digits is 207360, while the sum is 46.

The square root of 125292889 is about 11193.4306180009. The cubic root of 125292889 is about 500.3902140534.

The spelling of 125292889 in words is "one hundred twenty-five million, two hundred ninety-two thousand, eight hundred eighty-nine".