20201151 has 16 divisors (see below), whose sum is σ = 29217888. Its totient is φ = 12364800.

The previous prime is 20201143. The next prime is 20201173. The reversal of 20201151 is 15110202.

It is not a de Polignac number, because 20201151 - 2³ = 20201143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20201101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2740 + ... + 6921.

It is an arithmetic number, because the mean of its divisors is an integer number (1826118).

Almost surely, 2^20201151 is an apocalyptic number.

20201151 is a deficient number, since it is larger than the sum of its proper divisors (9016737).

20201151 is a wasteful number, since it uses less digits than its factorization.

20201151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9722.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 20201151 is about 4494.5690560943. The cubic root of 20201151 is about 272.3487407888.

Adding to 20201151 its reverse (15110202), we get a palindrome (35311353).

The spelling of 20201151 in words is "twenty million, two hundred one thousand, one hundred fifty-one".