614191117 has 2 divisors, whose sum is σ = 614191118. Its totient is φ = 614191116.

The previous prime is 614191073. The next prime is 614191133. The reversal of 614191117 is 711191416.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414081801 + 200109316 = 20349^2 + 14146^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-614191117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (614191187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307095558 + 307095559.

It is an arithmetic number, because the mean of its divisors is an integer number (307095559).

Almost surely, 2^614191117 is an apocalyptic number.

It is an amenable number.

614191117 is a deficient number, since it is larger than the sum of its proper divisors (1).

614191117 is an equidigital number, since it uses as much as digits as its factorization.

614191117 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 31.

The square root of 614191117 is about 24782.8795138902. The cubic root of 614191117 is about 850.0305027116.

The spelling of 614191117 in words is "six hundred fourteen million, one hundred ninety-one thousand, one hundred seventeen".