242877961 has 2 divisors, whose sum is σ = 242877962. Its totient is φ = 242877960.

The previous prime is 242877941. The next prime is 242877967. The reversal of 242877961 is 169778242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140564736 + 102313225 = 11856^2 + 10115^2 .

It is a cyclic number.

It is not a de Polignac number, because 242877961 - 2⁹ = 242877449 is a prime.

It is not a weakly prime, because it can be changed into another prime (242877967) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121438980 + 121438981.

It is an arithmetic number, because the mean of its divisors is an integer number (121438981).

Almost surely, 2^242877961 is an apocalyptic number.

It is an amenable number.

242877961 is a deficient number, since it is larger than the sum of its proper divisors (1).

242877961 is an equidigital number, since it uses as much as digits as its factorization.

242877961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 46.

The square root of 242877961 is about 15584.5423737754. The cubic root of 242877961 is about 623.9206638465.

The spelling of 242877961 in words is "two hundred forty-two million, eight hundred seventy-seven thousand, nine hundred sixty-one".