242165631 has 8 divisors (see below), whose sum is σ = 334021680. Its totient is φ = 155876672.

The previous prime is 242165603. The next prime is 242165657. The reversal of 242165631 is 136561242.

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 242165631 - 2¹⁴ = 242149247 is a prime.

It is a super-2 number, since 2×242165631² = 117288385675256322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242165681) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1391670 + ... + 1391843.

It is an arithmetic number, because the mean of its divisors is an integer number (41752710).

Almost surely, 2^242165631 is an apocalyptic number.

242165631 is a deficient number, since it is larger than the sum of its proper divisors (91856049).

242165631 is a wasteful number, since it uses less digits than its factorization.

242165631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2783545.

The product of its digits is 8640, while the sum is 30.

The square root of 242165631 is about 15561.6718574837. The cubic root of 242165631 is about 623.3101067219.

The spelling of 242165631 in words is "two hundred forty-two million, one hundred sixty-five thousand, six hundred thirty-one".