202813130 has 32 divisors (see below), whose sum is σ = 393776208. Its totient is φ = 74764800.

The previous prime is 202813123. The next prime is 202813141. The reversal of 202813130 is 31318202.

202813130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 147355321 + 55457809 = 12139^2 + 7447^2 .

It is a super-2 number, since 2×202813130² = 82266331400793800, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 152870 + ... + 154190.

Almost surely, 2^202813130 is an apocalyptic number.

202813130 is a deficient number, since it is larger than the sum of its proper divisors (190963078).

202813130 is a wasteful number, since it uses less digits than its factorization.

202813130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2522.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 202813130 is about 14241.2474874921. The cubic root of 202813130 is about 587.5326723945.

The spelling of 202813130 in words is "two hundred two million, eight hundred thirteen thousand, one hundred thirty".