242997497 has 8 divisors (see below), whose sum is σ = 245743680. Its totient is φ = 240258960.

The previous prime is 242997493. The next prime is 242997511. The reversal of 242997497 is 794799242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242997497 - 2² = 242997493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242997493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 82079 + ... + 84987.

It is an arithmetic number, because the mean of its divisors is an integer number (30717960).

Almost surely, 2^242997497 is an apocalyptic number.

It is an amenable number.

242997497 is a deficient number, since it is larger than the sum of its proper divisors (2746183).

242997497 is a wasteful number, since it uses less digits than its factorization.

242997497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3823.

The product of its digits is 2286144, while the sum is 53.

The square root of 242997497 is about 15588.3769841507. The cubic root of 242997497 is about 624.0230043363.

The spelling of 242997497 in words is "two hundred forty-two million, nine hundred ninety-seven thousand, four hundred ninety-seven".