234261491 has 2 divisors, whose sum is σ = 234261492. Its totient is φ = 234261490.

The previous prime is 234261409. The next prime is 234261493. The reversal of 234261491 is 194162432.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234261491 is a prime.

Together with 234261493, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p_12863615 and since 234261491 and 12863615 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (234261493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117130745 + 117130746.

It is an arithmetic number, because the mean of its divisors is an integer number (117130746).

Almost surely, 2^234261491 is an apocalyptic number.

234261491 is a deficient number, since it is larger than the sum of its proper divisors (1).

234261491 is an equidigital number, since it uses as much as digits as its factorization.

234261491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 234261491 is about 15305.6032550174. The cubic root of 234261491 is about 616.4534692599.

The spelling of 234261491 in words is "two hundred thirty-four million, two hundred sixty-one thousand, four hundred ninety-one".