128102901 has 16 divisors (see below), whose sum is σ = 175358400. Its totient is φ = 83134080.

The previous prime is 128102873. The next prime is 128102903. The reversal of 128102901 is 109201821.

It is not a de Polignac number, because 128102901 - 2⁵ = 128102869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128102903) 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, 74550 + ... + 76248.

It is an arithmetic number, because the mean of its divisors is an integer number (10959900).

Almost surely, 2^128102901 is an apocalyptic number.

It is an amenable number.

128102901 is a deficient number, since it is larger than the sum of its proper divisors (47255499).

128102901 is a wasteful number, since it uses less digits than its factorization.

128102901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2356.

The product of its (nonzero) digits is 288, while the sum is 24.

The square root of 128102901 is about 11318.2552100578. The cubic root of 128102901 is about 504.1034328848.

The spelling of 128102901 in words is "one hundred twenty-eight million, one hundred two thousand, nine hundred one".