242151235 has 4 divisors (see below), whose sum is σ = 290581488. Its totient is φ = 193720984.

The previous prime is 242151233. The next prime is 242151269. The reversal of 242151235 is 532151242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242151235 - 2¹ = 242151233 is a prime.

It is a super-2 number, since 2×242151235² = 117274441224050450, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242151233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24215119 + ... + 24215128.

It is an arithmetic number, because the mean of its divisors is an integer number (72645372).

Almost surely, 2^242151235 is an apocalyptic number.

242151235 is a deficient number, since it is larger than the sum of its proper divisors (48430253).

242151235 is an equidigital number, since it uses as much as digits as its factorization.

242151235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48430252.

The product of its digits is 2400, while the sum is 25.

The square root of 242151235 is about 15561.2093039069. The cubic root of 242151235 is about 623.2977551892.

The spelling of 242151235 in words is "two hundred forty-two million, one hundred fifty-one thousand, two hundred thirty-five".