614881231 has 2 divisors, whose sum is σ = 614881232. Its totient is φ = 614881230.

The previous prime is 614881139. The next prime is 614881247. The reversal of 614881231 is 132188416.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 614881231 - 2¹¹ = 614879183 is a prime.

It is a super-2 number, since 2×614881231² = 756157856472150722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (614881291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307440615 + 307440616.

It is an arithmetic number, because the mean of its divisors is an integer number (307440616).

Almost surely, 2^614881231 is an apocalyptic number.

614881231 is a deficient number, since it is larger than the sum of its proper divisors (1).

614881231 is an equidigital number, since it uses as much as digits as its factorization.

614881231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9216, while the sum is 34.

The square root of 614881231 is about 24796.7988054910. The cubic root of 614881231 is about 850.3487523901.

The spelling of 614881231 in words is "six hundred fourteen million, eight hundred eighty-one thousand, two hundred thirty-one".