242061731 has 2 divisors, whose sum is σ = 242061732. Its totient is φ = 242061730.

The previous prime is 242061727. The next prime is 242061763. The reversal of 242061731 is 137160242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242061731 - 2² = 242061727 is a prime.

It is a super-2 number, since 2×242061731² = 117187763229432722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242061731.

It is not a weakly prime, because it can be changed into another prime (242061431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121030865 + 121030866.

It is an arithmetic number, because the mean of its divisors is an integer number (121030866).

Almost surely, 2^242061731 is an apocalyptic number.

242061731 is a deficient number, since it is larger than the sum of its proper divisors (1).

242061731 is an equidigital number, since it uses as much as digits as its factorization.

242061731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 242061731 is about 15558.3331690769. Note that the first 3 decimals coincide. The cubic root of 242061731 is about 623.2209512350.

The spelling of 242061731 in words is "two hundred forty-two million, sixty-one thousand, seven hundred thirty-one".