232145399 has 2 divisors, whose sum is σ = 232145400. Its totient is φ = 232145398.

The previous prime is 232145359. The next prime is 232145423. The reversal of 232145399 is 993541232.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 232145399 - 2²⁰ = 231096823 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (232145359) 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, 116072699 + 116072700.

It is an arithmetic number, because the mean of its divisors is an integer number (116072700).

Almost surely, 2^232145399 is an apocalyptic number.

232145399 is a deficient number, since it is larger than the sum of its proper divisors (1).

232145399 is an equidigital number, since it uses as much as digits as its factorization.

232145399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The square root of 232145399 is about 15236.3184201434. The cubic root of 232145399 is about 614.5917037882.

The spelling of 232145399 in words is "two hundred thirty-two million, one hundred forty-five thousand, three hundred ninety-nine".