274414991 has 2 divisors, whose sum is σ = 274414992. Its totient is φ = 274414990.

The previous prime is 274414961. The next prime is 274415017. The reversal of 274414991 is 199414472.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274414991 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (274414951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137207495 + 137207496.

It is an arithmetic number, because the mean of its divisors is an integer number (137207496).

Almost surely, 2^274414991 is an apocalyptic number.

274414991 is a deficient number, since it is larger than the sum of its proper divisors (1).

274414991 is an equidigital number, since it uses as much as digits as its factorization.

274414991 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 41.

The square root of 274414991 is about 16565.4758760502. The cubic root of 274414991 is about 649.8342701737.

The spelling of 274414991 in words is "two hundred seventy-four million, four hundred fourteen thousand, nine hundred ninety-one".