242157254 has 16 divisors (see below), whose sum is σ = 371520000. Its totient is φ = 118325064.

The previous prime is 242157247. The next prime is 242157263. The reversal of 242157254 is 452751242.

It is a self number, because there is not a number n which added to its sum of digits gives 242157254.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 79247 + ... + 82245.

It is an arithmetic number, because the mean of its divisors is an integer number (23220000).

Almost surely, 2^242157254 is an apocalyptic number.

242157254 is a deficient number, since it is larger than the sum of its proper divisors (129362746).

242157254 is a wasteful number, since it uses less digits than its factorization.

242157254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907.

The product of its digits is 22400, while the sum is 32.

The square root of 242157254 is about 15561.4027002709. The cubic root of 242157254 is about 623.3029194524.

The spelling of 242157254 in words is "two hundred forty-two million, one hundred fifty-seven thousand, two hundred fifty-four".