202642031 has 4 divisors (see below), whose sum is σ = 205207200. Its totient is φ = 200076864.

The previous prime is 202642003. The next prime is 202642039. The reversal of 202642031 is 130246202.

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 202642031 - 2¹⁰ = 202641007 is a prime.

It is a super-2 number, since 2×202642031² = 82127585455609922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202641994 and 202642012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202642039) 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, 1282466 + ... + 1282623.

It is an arithmetic number, because the mean of its divisors is an integer number (51301800).

Almost surely, 2^202642031 is an apocalyptic number.

202642031 is a deficient number, since it is larger than the sum of its proper divisors (2565169).

202642031 is an equidigital number, since it uses as much as digits as its factorization.

202642031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2565168.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 202642031 is about 14235.2390566509. The cubic root of 202642031 is about 587.3674060811.

Adding to 202642031 its reverse (130246202), we get a palindrome (332888233).

The spelling of 202642031 in words is "two hundred two million, six hundred forty-two thousand, thirty-one".