242153186 has 24 divisors (see below), whose sum is σ = 402447360. Its totient is φ = 109189080.

The previous prime is 242153179. The next prime is 242153207. The reversal of 242153186 is 681351242.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26795 + ... + 34673.

It is an arithmetic number, because the mean of its divisors is an integer number (16768640).

Almost surely, 2^242153186 is an apocalyptic number.

242153186 is a deficient number, since it is larger than the sum of its proper divisors (160294174).

242153186 is a wasteful number, since it uses less digits than its factorization.

242153186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8030 (or 8019 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 242153186 is about 15561.2719917107. The cubic root of 242153186 is about 623.2994291440.

The spelling of 242153186 in words is "two hundred forty-two million, one hundred fifty-three thousand, one hundred eighty-six".