242453317 has 2 divisors, whose sum is σ = 242453318. Its totient is φ = 242453316.

The previous prime is 242453293. The next prime is 242453339. The reversal of 242453317 is 713354242.

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., 216707841 + 25745476 = 14721^2 + 5074^2 .

It is a cyclic number.

It is not a de Polignac number, because 242453317 - 2²³ = 234064709 is a prime.

It is a super-2 number, since 2×242453317² = 117567221848604978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242453017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121226658 + 121226659.

It is an arithmetic number, because the mean of its divisors is an integer number (121226659).

Almost surely, 2^242453317 is an apocalyptic number.

It is an amenable number.

242453317 is a deficient number, since it is larger than the sum of its proper divisors (1).

242453317 is an equidigital number, since it uses as much as digits as its factorization.

242453317 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 31.

The square root of 242453317 is about 15570.9125294570. The cubic root of 242453317 is about 623.5568340401.

The spelling of 242453317 in words is "two hundred forty-two million, four hundred fifty-three thousand, three hundred seventeen".