20338153 has 4 divisors (see below), whose sum is σ = 22187088. Its totient is φ = 18489220.

The previous prime is 20338133. The next prime is 20338181. The reversal of 20338153 is 35183302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20338153 - 2¹⁷ = 20207081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20338133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 924451 + ... + 924472.

It is an arithmetic number, because the mean of its divisors is an integer number (5546772).

Almost surely, 2^20338153 is an apocalyptic number.

It is an amenable number.

20338153 is a deficient number, since it is larger than the sum of its proper divisors (1848935).

20338153 is a wasteful number, since it uses less digits than its factorization.

20338153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848934.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 20338153 is about 4509.7841411757. The cubic root of 20338153 is about 272.9630339908.

The spelling of 20338153 in words is "twenty million, three hundred thirty-eight thousand, one hundred fifty-three".