128836132 has 24 divisors (see below), whose sum is σ = 240970464. Its totient is φ = 60058752.

The previous prime is 128836061. The next prime is 128836153. The reversal of 128836132 is 231638821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 1578 + ... + 16129.

It is an arithmetic number, because the mean of its divisors is an integer number (10040436).

Almost surely, 2^128836132 is an apocalyptic number.

It is an amenable number.

128836132 is a deficient number, since it is larger than the sum of its proper divisors (112134332).

128836132 is a wasteful number, since it uses less digits than its factorization.

128836132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17835 (or 17833 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 128836132 is about 11350.6005127482. The cubic root of 128836132 is about 505.0633936690.

The spelling of 128836132 in words is "one hundred twenty-eight million, eight hundred thirty-six thousand, one hundred thirty-two".