242351231 has 8 divisors (see below), whose sum is σ = 254820000. Its totient is φ = 230156640.

The previous prime is 242351189. The next prime is 242351233. The reversal of 242351231 is 132153242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242351231 is a prime.

It is a super-2 number, since 2×242351231² = 117468238334430722, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 242351197 and 242351206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242351233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66731 + ... + 70268.

It is an arithmetic number, because the mean of its divisors is an integer number (31852500).

Almost surely, 2^242351231 is an apocalyptic number.

242351231 is a deficient number, since it is larger than the sum of its proper divisors (12468769).

242351231 is a wasteful number, since it uses less digits than its factorization.

242351231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137089.

The product of its digits is 1440, while the sum is 23.

The square root of 242351231 is about 15567.6340848570. The cubic root of 242351231 is about 623.4693046687.

The spelling of 242351231 in words is "two hundred forty-two million, three hundred fifty-one thousand, two hundred thirty-one".