20339135 has 4 divisors (see below), whose sum is σ = 24406968. Its totient is φ = 16271304.

The previous prime is 20339119. The next prime is 20339147. The reversal of 20339135 is 53193302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20339135 - 2⁴ = 20339119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2033909 + ... + 2033918.

It is an arithmetic number, because the mean of its divisors is an integer number (6101742).

Almost surely, 2^20339135 is an apocalyptic number.

20339135 is a deficient number, since it is larger than the sum of its proper divisors (4067833).

20339135 is an equidigital number, since it uses as much as digits as its factorization.

20339135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4067832.

The product of its (nonzero) digits is 2430, while the sum is 26.

The square root of 20339135 is about 4509.8930142521. The cubic root of 20339135 is about 272.9674271361.

The spelling of 20339135 in words is "twenty million, three hundred thirty-nine thousand, one hundred thirty-five".