242613231 has 16 divisors (see below), whose sum is σ = 375216384. Its totient is φ = 136566144.

The previous prime is 242613229. The next prime is 242613253. The reversal of 242613231 is 132316242.

It is not a de Polignac number, because 242613231 - 2¹ = 242613229 is a prime.

It is a super-2 number, since 2×242613231² = 117722359712518722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242613271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84810 + ... + 87623.

It is an arithmetic number, because the mean of its divisors is an integer number (23451024).

Almost surely, 2^242613231 is an apocalyptic number.

242613231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

242613231 is a deficient number, since it is larger than the sum of its proper divisors (132603153).

242613231 is a wasteful number, since it uses less digits than its factorization.

242613231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172510.

The product of its digits is 1728, while the sum is 24.

The square root of 242613231 is about 15576.0467064015. The cubic root of 242613231 is about 623.6938962367.

Adding to 242613231 its reverse (132316242), we get a palindrome (374929473).

The spelling of 242613231 in words is "two hundred forty-two million, six hundred thirteen thousand, two hundred thirty-one".