614243491 has 2 divisors, whose sum is σ = 614243492. Its totient is φ = 614243490.

The previous prime is 614243467. The next prime is 614243569. The reversal of 614243491 is 194342416.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 614243491 - 2⁵ = 614243459 is a prime.

It is not a weakly prime, because it can be changed into another prime (614243431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307121745 + 307121746.

It is an arithmetic number, because the mean of its divisors is an integer number (307121746).

Almost surely, 2^614243491 is an apocalyptic number.

614243491 is a deficient number, since it is larger than the sum of its proper divisors (1).

614243491 is an equidigital number, since it uses as much as digits as its factorization.

614243491 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The square root of 614243491 is about 24783.9361482392. The cubic root of 614243491 is about 850.0546636125.

The spelling of 614243491 in words is "six hundred fourteen million, two hundred forty-three thousand, four hundred ninety-one".