290324231 has 2 divisors, whose sum is σ = 290324232. Its totient is φ = 290324230.

The previous prime is 290324179. The next prime is 290324257. The reversal of 290324231 is 132423092.

It is an a-pointer prime, because the next prime (290324257) can be obtained adding 290324231 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 290324231 - 2¹⁴ = 290307847 is a prime.

It is a super-2 number, since 2×290324231² = 168576318211482722, 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 290324231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (290327231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145162115 + 145162116.

It is an arithmetic number, because the mean of its divisors is an integer number (145162116).

Almost surely, 2^290324231 is an apocalyptic number.

290324231 is a deficient number, since it is larger than the sum of its proper divisors (1).

290324231 is an equidigital number, since it uses as much as digits as its factorization.

290324231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 290324231 is about 17038.9034565021. The cubic root of 290324231 is about 662.1571833110.

The spelling of 290324231 in words is "two hundred ninety million, three hundred twenty-four thousand, two hundred thirty-one".