242560531 has 4 divisors (see below), whose sum is σ = 245883352. Its totient is φ = 239237712.

The previous prime is 242560501. The next prime is 242560537. The reversal of 242560531 is 135065242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242560531 is a prime.

It is a super-2 number, since 2×242560531² = 117671222398003922, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 242560531.

It is not an unprimeable number, because it can be changed into a prime (242560537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1661301 + ... + 1661446.

It is an arithmetic number, because the mean of its divisors is an integer number (61470838).

Almost surely, 2^242560531 is an apocalyptic number.

242560531 is a deficient number, since it is larger than the sum of its proper divisors (3322821).

242560531 is an equidigital number, since it uses as much as digits as its factorization.

242560531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3322820.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 242560531 is about 15574.3549144098. The cubic root of 242560531 is about 623.6487337527.

The spelling of 242560531 in words is "two hundred forty-two million, five hundred sixty thousand, five hundred thirty-one".