234162991 has 2 divisors, whose sum is σ = 234162992. Its totient is φ = 234162990.

The previous prime is 234162989. The next prime is 234163009. The reversal of 234162991 is 199261432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 234162991 - 2¹ = 234162989 is a prime.

Together with 234162989, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 234162991.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234162961) 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, 117081495 + 117081496.

It is an arithmetic number, because the mean of its divisors is an integer number (117081496).

Almost surely, 2^234162991 is an apocalyptic number.

234162991 is a deficient number, since it is larger than the sum of its proper divisors (1).

234162991 is an equidigital number, since it uses as much as digits as its factorization.

234162991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 37.

The square root of 234162991 is about 15302.3851408857. The cubic root of 234162991 is about 616.3670570219.

The spelling of 234162991 in words is "two hundred thirty-four million, one hundred sixty-two thousand, nine hundred ninety-one".