231374929 has 2 divisors, whose sum is σ = 231374930. Its totient is φ = 231374928.

The previous prime is 231374903. The next prime is 231374939. The reversal of 231374929 is 929473132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124211025 + 107163904 = 11145^2 + 10352^2 .

It is a cyclic number.

It is not a de Polignac number, because 231374929 - 2¹⁵ = 231342161 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 231374891 and 231374900.

It is not a weakly prime, because it can be changed into another prime (231374939) 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, 115687464 + 115687465.

It is an arithmetic number, because the mean of its divisors is an integer number (115687465).

Almost surely, 2^231374929 is an apocalyptic number.

It is an amenable number.

231374929 is a deficient number, since it is larger than the sum of its proper divisors (1).

231374929 is an equidigital number, since it uses as much as digits as its factorization.

231374929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81648, while the sum is 40.

The square root of 231374929 is about 15211.0134113411. The cubic root of 231374929 is about 613.9110250670.

The spelling of 231374929 in words is "two hundred thirty-one million, three hundred seventy-four thousand, nine hundred twenty-nine".