20077159 has 4 divisors (see below), whose sum is σ = 20264904. Its totient is φ = 19889416.

The previous prime is 20077151. The next prime is 20077163. The reversal of 20077159 is 95177002.

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 20077159 - 2³ = 20077151 is a prime.

It is a super-2 number, since 2×20077159² = 806184627022562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20077159.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20077151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93712 + ... + 93925.

It is an arithmetic number, because the mean of its divisors is an integer number (5066226).

Almost surely, 2^20077159 is an apocalyptic number.

20077159 is a deficient number, since it is larger than the sum of its proper divisors (187745).

20077159 is a wasteful number, since it uses less digits than its factorization.

20077159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187744.

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 20077159 is about 4480.7542891794. The cubic root of 20077159 is about 271.7903833029.

The spelling of 20077159 in words is "twenty million, seventy-seven thousand, one hundred fifty-nine".