202879077241 has 3 divisors (see below), whose sum is σ = 202879527663. Its totient is φ = 202878626820.

The previous prime is 202879077227. The next prime is 202879077299. The reversal of 202879077241 is 142770978202.

The square root of 202879077241 is 450421.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 142770978202 = 2 ⋅71385489101.

It can be written as a sum of positive squares in only one way, i.e., 200147969641 + 2731107600 = 447379^2 + 52260^2 .

It is not a de Polignac number, because 202879077241 - 2⁷ = 202879077113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202879077641) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 225211 + ... + 675631.

It is an arithmetic number, because the mean of its divisors is an integer number (67626509221).

Almost surely, 2^202879077241 is an apocalyptic number.

202879077241 is the 450421-st square number.

202879077241 is the 225211-st centered octagonal number.

It is an amenable number.

202879077241 is a deficient number, since it is larger than the sum of its proper divisors (450422).

202879077241 is an frugal number, since it uses more digits than its factorization.

202879077241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900842 (or 450421 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 49.

Multiplying 202879077241 by its sum of digits (49), we get a square (9941074784809 = 3152947²).

The spelling of 202879077241 in words is "two hundred two billion, eight hundred seventy-nine million, seventy-seven thousand, two hundred forty-one".