128373902 has 32 divisors (see below), whose sum is σ = 214244352. Its totient is φ = 57380224.

The previous prime is 128373901. The next prime is 128373961. The reversal of 128373902 is 209373821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128373901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130103 + ... + 131085.

It is an arithmetic number, because the mean of its divisors is an integer number (6695136).

Almost surely, 2^128373902 is an apocalyptic number.

128373902 is a deficient number, since it is larger than the sum of its proper divisors (85870450).

128373902 is a wasteful number, since it uses less digits than its factorization.

128373902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 128373902 is about 11330.2207392442. The cubic root of 128373902 is about 504.4586585459.

The spelling of 128373902 in words is "one hundred twenty-eight million, three hundred seventy-three thousand, nine hundred two".