231839093 has 2 divisors, whose sum is σ = 231839094. Its totient is φ = 231839092.

The previous prime is 231839089. The next prime is 231839107. The reversal of 231839093 is 390938132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 154803364 + 77035729 = 12442^2 + 8777^2 .

It is a cyclic number.

It is not a de Polignac number, because 231839093 - 2² = 231839089 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231839053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115919546 + 115919547.

It is an arithmetic number, because the mean of its divisors is an integer number (115919547).

Almost surely, 2^231839093 is an apocalyptic number.

It is an amenable number.

231839093 is a deficient number, since it is larger than the sum of its proper divisors (1).

231839093 is an equidigital number, since it uses as much as digits as its factorization.

231839093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 231839093 is about 15226.2632645045. The cubic root of 231839093 is about 614.3212755920.

The spelling of 231839093 in words is "two hundred thirty-one million, eight hundred thirty-nine thousand, ninety-three".