202242461 has 2 divisors, whose sum is σ = 202242462. Its totient is φ = 202242460.

The previous prime is 202242431. The next prime is 202242503. The reversal of 202242461 is 164242202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202179961 + 62500 = 14219^2 + 250^2 .

It is a cyclic number.

It is not a de Polignac number, because 202242461 - 2²² = 198048157 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202242401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101121230 + 101121231.

It is an arithmetic number, because the mean of its divisors is an integer number (101121231).

Almost surely, 2^202242461 is an apocalyptic number.

It is an amenable number.

202242461 is a deficient number, since it is larger than the sum of its proper divisors (1).

202242461 is an equidigital number, since it uses as much as digits as its factorization.

202242461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 202242461 is about 14221.1975937331. The cubic root of 202242461 is about 586.9810946144.

Adding to 202242461 its reverse (164242202), we get a palindrome (366484663).

The spelling of 202242461 in words is "two hundred two million, two hundred forty-two thousand, four hundred sixty-one".