242190651 has 16 divisors (see below), whose sum is σ = 326836224. Its totient is φ = 159513984.

The previous prime is 242190647. The next prime is 242190659. The reversal of 242190651 is 156091242.

It is not a de Polignac number, because 242190651 - 2² = 242190647 is a prime.

It is a super-2 number, since 2×242190651² = 117312622863607602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (242190659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98995 + ... + 101411.

It is an arithmetic number, because the mean of its divisors is an integer number (20427264).

Almost surely, 2^242190651 is an apocalyptic number.

242190651 is a deficient number, since it is larger than the sum of its proper divisors (84645573).

242190651 is a wasteful number, since it uses less digits than its factorization.

242190651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2810.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 242190651 is about 15562.4757349208. The cubic root of 242190651 is about 623.3315723083.

The spelling of 242190651 in words is "two hundred forty-two million, one hundred ninety thousand, six hundred fifty-one".