614249257 has 2 divisors, whose sum is σ = 614249258. Its totient is φ = 614249256.

The previous prime is 614249243. The next prime is 614249269. The reversal of 614249257 is 752942416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 614246656 + 2601 = 24784^2 + 51^2 .

It is a cyclic number.

It is not a de Polignac number, because 614249257 - 2²⁷ = 480031529 is a prime.

It is not a weakly prime, because it can be changed into another prime (614249297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307124628 + 307124629.

It is an arithmetic number, because the mean of its divisors is an integer number (307124629).

Almost surely, 2^614249257 is an apocalyptic number.

It is an amenable number.

614249257 is a deficient number, since it is larger than the sum of its proper divisors (1).

614249257 is an equidigital number, since it uses as much as digits as its factorization.

614249257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120960, while the sum is 40.

The square root of 614249257 is about 24784.0524733144. The cubic root of 614249257 is about 850.0573234697.

The spelling of 614249257 in words is "six hundred fourteen million, two hundred forty-nine thousand, two hundred fifty-seven".