232151891 has 2 divisors, whose sum is σ = 232151892. Its totient is φ = 232151890.

The previous prime is 232151863. The next prime is 232151893. The reversal of 232151891 is 198151232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232151891 - 2⁶ = 232151827 is a prime.

Together with 232151893, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (232151893) 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, 116075945 + 116075946.

It is an arithmetic number, because the mean of its divisors is an integer number (116075946).

Almost surely, 2^232151891 is an apocalyptic number.

232151891 is a deficient number, since it is larger than the sum of its proper divisors (1).

232151891 is an equidigital number, since it uses as much as digits as its factorization.

232151891 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 32.

The square root of 232151891 is about 15236.5314622456. The cubic root of 232151891 is about 614.5974328014.

The spelling of 232151891 in words is "two hundred thirty-two million, one hundred fifty-one thousand, eight hundred ninety-one".