20368151 has 8 divisors (see below), whose sum is σ = 20630400. Its totient is φ = 20107872.

The previous prime is 20368129. The next prime is 20368163. The reversal of 20368151 is 15186302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20368151 - 2¹⁸ = 20106007 is a prime.

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 20368151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20368651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32921 + ... + 33533.

It is an arithmetic number, because the mean of its divisors is an integer number (2578800).

Almost surely, 2^20368151 is an apocalyptic number.

20368151 is a deficient number, since it is larger than the sum of its proper divisors (262249).

20368151 is a wasteful number, since it uses less digits than its factorization.

20368151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 20368151 is about 4513.1087954978. The cubic root of 20368151 is about 273.0971714181.

The spelling of 20368151 in words is "twenty million, three hundred sixty-eight thousand, one hundred fifty-one".