342245231 has 2 divisors, whose sum is σ = 342245232. Its totient is φ = 342245230.

The previous prime is 342245209. The next prime is 342245249. The reversal of 342245231 is 132542243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342245231 is a prime.

It is a super-2 number, since 2×342245231² = 234263596284486722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342245231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342245251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171122615 + 171122616.

It is an arithmetic number, because the mean of its divisors is an integer number (171122616).

Almost surely, 2^342245231 is an apocalyptic number.

342245231 is a deficient number, since it is larger than the sum of its proper divisors (1).

342245231 is an equidigital number, since it uses as much as digits as its factorization.

342245231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 26.

The square root of 342245231 is about 18499.8711076591. The cubic root of 342245231 is about 699.4861746265.

Adding to 342245231 its reverse (132542243), we get a palindrome (474787474).

The spelling of 342245231 in words is "three hundred forty-two million, two hundred forty-five thousand, two hundred thirty-one".