230031493 has 2 divisors, whose sum is σ = 230031494. Its totient is φ = 230031492.

The previous prime is 230031449. The next prime is 230031497. The reversal of 230031493 is 394130032.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 216178209 + 13853284 = 14703^2 + 3722^2 .

It is a cyclic number.

It is not a de Polignac number, because 230031493 - 2¹³ = 230023301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230031497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115015746 + 115015747.

It is an arithmetic number, because the mean of its divisors is an integer number (115015747).

Almost surely, 2^230031493 is an apocalyptic number.

It is an amenable number.

230031493 is a deficient number, since it is larger than the sum of its proper divisors (1).

230031493 is an equidigital number, since it uses as much as digits as its factorization.

230031493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 230031493 is about 15166.7891460256. The cubic root of 230031493 is about 612.7205307785.

The spelling of 230031493 in words is "two hundred thirty million, thirty-one thousand, four hundred ninety-three".