242761357 has 2 divisors, whose sum is σ = 242761358. Its totient is φ = 242761356.

The previous prime is 242761331. The next prime is 242761367. The reversal of 242761357 is 753167242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237498921 + 5262436 = 15411^2 + 2294^2 .

It is a cyclic number.

It is not a de Polignac number, because 242761357 - 2⁷ = 242761229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242761367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121380678 + 121380679.

It is an arithmetic number, because the mean of its divisors is an integer number (121380679).

Almost surely, 2^242761357 is an apocalyptic number.

It is an amenable number.

242761357 is a deficient number, since it is larger than the sum of its proper divisors (1).

242761357 is an equidigital number, since it uses as much as digits as its factorization.

242761357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 70560, while the sum is 37.

The square root of 242761357 is about 15580.8009100944. The cubic root of 242761357 is about 623.8208012236.

The spelling of 242761357 in words is "two hundred forty-two million, seven hundred sixty-one thousand, three hundred fifty-seven".