20133902 has 16 divisors (see below), whose sum is σ = 30987600. Its totient is φ = 9808128.

The previous prime is 20133889. The next prime is 20133937. The reversal of 20133902 is 20933102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12224 + ... + 13772.

It is an arithmetic number, because the mean of its divisors is an integer number (1936725).

Almost surely, 2^20133902 is an apocalyptic number.

20133902 is a deficient number, since it is larger than the sum of its proper divisors (10853698).

20133902 is a wasteful number, since it uses less digits than its factorization.

20133902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 20133902 is about 4487.0816796666. The cubic root of 20133902 is about 272.0461913335.

The spelling of 20133902 in words is "twenty million, one hundred thirty-three thousand, nine hundred two".