20292159 has 4 divisors (see below), whose sum is σ = 27056216. Its totient is φ = 13528104.

The previous prime is 20292143. The next prime is 20292179. The reversal of 20292159 is 95129202.

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

It is not a de Polignac number, because 20292159 - 2⁴ = 20292143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20292119) 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, 3382024 + ... + 3382029.

It is an arithmetic number, because the mean of its divisors is an integer number (6764054).

Almost surely, 2^20292159 is an apocalyptic number.

20292159 is a deficient number, since it is larger than the sum of its proper divisors (6764057).

20292159 is an equidigital number, since it uses as much as digits as its factorization.

20292159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6764056.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 20292159 is about 4504.6818977593. The cubic root of 20292159 is about 272.7571133308.

The spelling of 20292159 in words is "twenty million, two hundred ninety-two thousand, one hundred fifty-nine".