20183159 has 12 divisors (see below), whose sum is σ = 21196656. Its totient is φ = 19215168.

The previous prime is 20183143. The next prime is 20183171. The reversal of 20183159 is 95138102.

It is not a de Polignac number, because 20183159 - 2⁴ = 20183143 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20183459) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86507 + ... + 86739.

It is an arithmetic number, because the mean of its divisors is an integer number (1766388).

Almost surely, 2^20183159 is an apocalyptic number.

20183159 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

20183159 is a deficient number, since it is larger than the sum of its proper divisors (1013497).

20183159 is a wasteful number, since it uses less digits than its factorization.

20183159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 365 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The square root of 20183159 is about 4492.5670835281. The cubic root of 20183159 is about 272.2678616678.

The spelling of 20183159 in words is "twenty million, one hundred eighty-three thousand, one hundred fifty-nine".