202151005 has 16 divisors (see below), whose sum is σ = 278302464. Its totient is φ = 138084480.

The previous prime is 202151003. The next prime is 202151009. The reversal of 202151005 is 500151202.

It is not a de Polignac number, because 202151005 - 2¹ = 202151003 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 202151005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202151003) 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, 1776 + ... + 20185.

It is an arithmetic number, because the mean of its divisors is an integer number (17393904).

Almost surely, 2^202151005 is an apocalyptic number.

It is an amenable number.

202151005 is a deficient number, since it is larger than the sum of its proper divisors (76151459).

202151005 is a wasteful number, since it uses less digits than its factorization.

202151005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22236.

The product of its (nonzero) digits is 100, while the sum is 16.

The square root of 202151005 is about 14217.9817484761. The cubic root of 202151005 is about 586.8926017616.

The spelling of 202151005 in words is "two hundred two million, one hundred fifty-one thousand, five".