242554665 has 32 divisors (see below), whose sum is σ = 426286080. Its totient is φ = 117222336.

The previous prime is 242554649. The next prime is 242554667. The reversal of 242554665 is 566455242.

It is not a de Polignac number, because 242554665 - 2⁴ = 242554649 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242554667) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11947 + ... + 25056.

It is an arithmetic number, because the mean of its divisors is an integer number (13321440).

Almost surely, 2^242554665 is an apocalyptic number.

It is an amenable number.

242554665 is a deficient number, since it is larger than the sum of its proper divisors (183731415).

242554665 is a wasteful number, since it uses less digits than its factorization.

242554665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37053.

The product of its digits is 288000, while the sum is 39.

The square root of 242554665 is about 15574.1665908645. The cubic root of 242554665 is about 623.6437063437.

It can be divided in two parts, 24255 and 4665, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 242554665 in words is "two hundred forty-two million, five hundred fifty-four thousand, six hundred sixty-five".