231152071 has 2 divisors, whose sum is σ = 231152072. Its totient is φ = 231152070.

The previous prime is 231152041. The next prime is 231152087. The reversal of 231152071 is 170251132.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231152071 - 2⁹ = 231151559 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231152021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115576035 + 115576036.

It is an arithmetic number, because the mean of its divisors is an integer number (115576036).

Almost surely, 2^231152071 is an apocalyptic number.

231152071 is a deficient number, since it is larger than the sum of its proper divisors (1).

231152071 is an equidigital number, since it uses as much as digits as its factorization.

231152071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 231152071 is about 15203.6860991011. The cubic root of 231152071 is about 613.7138574458.

The spelling of 231152071 in words is "two hundred thirty-one million, one hundred fifty-two thousand, seventy-one".