242156313 has 24 divisors (see below), whose sum is σ = 423266688. Its totient is φ = 130234752.

The previous prime is 242156303. The next prime is 242156389. The reversal of 242156313 is 313651242.

242156313 is a `hidden beast` number, since 2 + 4 + 21 + 5 + 631 + 3 = 666.

242156313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242156313 - 2⁴ = 242156297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242156303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 111981 + ... + 114122.

It is an arithmetic number, because the mean of its divisors is an integer number (17636112).

Almost surely, 2^242156313 is an apocalyptic number.

It is an amenable number.

242156313 is a deficient number, since it is larger than the sum of its proper divisors (181110375).

242156313 is a wasteful number, since it uses less digits than its factorization.

242156313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226133 (or 226130 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 242156313 is about 15561.3724651780. The cubic root of 242156313 is about 623.3021120861.

The spelling of 242156313 in words is "two hundred forty-two million, one hundred fifty-six thousand, three hundred thirteen".