242151255 has 32 divisors (see below), whose sum is σ = 435697920. Its totient is φ = 127585440.

The previous prime is 242151233. The next prime is 242151269. The reversal of 242151255 is 552151242.

It is not a de Polignac number, because 242151255 - 2¹² = 242147159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 400 + ... + 22010.

It is an arithmetic number, because the mean of its divisors is an integer number (13615560).

Almost surely, 2^242151255 is an apocalyptic number.

242151255 is a deficient number, since it is larger than the sum of its proper divisors (193546665).

242151255 is a wasteful number, since it uses less digits than its factorization.

242151255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21708 (or 21702 counting only the distinct ones).

The product of its digits is 4000, while the sum is 27.

The square root of 242151255 is about 15561.2099465305. The cubic root of 242151255 is about 623.2977723492.

The spelling of 242151255 in words is "two hundred forty-two million, one hundred fifty-one thousand, two hundred fifty-five".