274890251 has 2 divisors, whose sum is σ = 274890252. Its totient is φ = 274890250.

The previous prime is 274890229. The next prime is 274890257. The reversal of 274890251 is 152098472.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274890251 is a prime.

It is not a weakly prime, because it can be changed into another prime (274890257) 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, 137445125 + 137445126.

It is an arithmetic number, because the mean of its divisors is an integer number (137445126).

Almost surely, 2^274890251 is an apocalyptic number.

274890251 is a deficient number, since it is larger than the sum of its proper divisors (1).

274890251 is an equidigital number, since it uses as much as digits as its factorization.

274890251 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40320, while the sum is 38.

The square root of 274890251 is about 16579.8145647049. The cubic root of 274890251 is about 650.2092036661.

The spelling of 274890251 in words is "two hundred seventy-four million, eight hundred ninety thousand, two hundred fifty-one".