128363136 has 64 divisors (see below), whose sum is σ = 371973600. Its totient is φ = 38896640.

The previous prime is 128363119. The next prime is 128363149. The reversal of 128363136 is 631363821.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 128363097 and 128363106.

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, 10971 + ... + 19418.

Almost surely, 2^128363136 is an apocalyptic number.

128363136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

128363136 is an abundant number, since it is smaller than the sum of its proper divisors (243610464).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128363136 is a wasteful number, since it uses less digits than its factorization.

128363136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30417 (or 30405 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 128363136 is about 11329.7456282125. The cubic root of 128363136 is about 504.4445561111. Note that the first 3 decimals are identical.

The spelling of 128363136 in words is "one hundred twenty-eight million, three hundred sixty-three thousand, one hundred thirty-six".