242352531 has 12 divisors (see below), whose sum is σ = 350398152. Its totient is φ = 161414496.

The previous prime is 242352521. The next prime is 242352547. The reversal of 242352531 is 135253242.

It is a happy number.

It is not a de Polignac number, because 242352531 - 2²³ = 233963923 is a prime.

It is a super-2 number, since 2×242352531² = 117469498564211922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242352495 and 242352504.

It is not an unprimeable number, because it can be changed into a prime (242352521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2401 + ... + 22146.

It is an arithmetic number, because the mean of its divisors is an integer number (29199846).

Almost surely, 2^242352531 is an apocalyptic number.

242352531 is a deficient number, since it is larger than the sum of its proper divisors (108045621).

242352531 is a wasteful number, since it uses less digits than its factorization.

242352531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25650 (or 25647 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 242352531 is about 15567.6758380948. The cubic root of 242352531 is about 623.4704194538.

The spelling of 242352531 in words is "two hundred forty-two million, three hundred fifty-two thousand, five hundred thirty-one".