230771591 has 2 divisors, whose sum is σ = 230771592. Its totient is φ = 230771590.

The previous prime is 230771579. The next prime is 230771599. The reversal of 230771591 is 195177032.

It is a happy number.

230771591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 230771591 - 2¹⁴ = 230755207 is a prime.

It is equal to p_12682718 and since 230771591 and 12682718 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230771599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115385795 + 115385796.

It is an arithmetic number, because the mean of its divisors is an integer number (115385796).

Almost surely, 2^230771591 is an apocalyptic number.

230771591 is a deficient number, since it is larger than the sum of its proper divisors (1).

230771591 is an equidigital number, since it uses as much as digits as its factorization.

230771591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13230, while the sum is 35.

The square root of 230771591 is about 15191.1681907614. The cubic root of 230771591 is about 613.3769449206.

The spelling of 230771591 in words is "two hundred thirty million, seven hundred seventy-one thousand, five hundred ninety-one".