128523244 has 24 divisors (see below), whose sum is σ = 233271360. Its totient is φ = 61885824.

The previous prime is 128523217. The next prime is 128523271. The reversal of 128523244 is 442325821.

It is an interprime number because it is at equal distance from previous prime (128523217) and next prime (128523271).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52512 + ... + 54904.

It is an arithmetic number, because the mean of its divisors is an integer number (9719640).

Almost surely, 2^128523244 is an apocalyptic number.

It is an amenable number.

128523244 is a deficient number, since it is larger than the sum of its proper divisors (104748116).

128523244 is a wasteful number, since it uses less digits than its factorization.

128523244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2889 (or 2887 counting only the distinct ones).

The product of its digits is 15360, while the sum is 31.

The square root of 128523244 is about 11336.8092512841. The cubic root of 128523244 is about 504.6542010683.

The spelling of 128523244 in words is "one hundred twenty-eight million, five hundred twenty-three thousand, two hundred forty-four".