274625081 has 2 divisors, whose sum is σ = 274625082. Its totient is φ = 274625080.

The previous prime is 274625077. The next prime is 274625177. The reversal of 274625081 is 180526472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 161925625 + 112699456 = 12725^2 + 10616^2 .

It is a cyclic number.

It is not a de Polignac number, because 274625081 - 2² = 274625077 is a prime.

It is a super-2 number, since 2×274625081² = 150837870228513122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274625381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137312540 + 137312541.

It is an arithmetic number, because the mean of its divisors is an integer number (137312541).

Almost surely, 2^274625081 is an apocalyptic number.

It is an amenable number.

274625081 is a deficient number, since it is larger than the sum of its proper divisors (1).

274625081 is an equidigital number, since it uses as much as digits as its factorization.

274625081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 274625081 is about 16571.8158630851. The cubic root of 274625081 is about 650.0000639053. Note that the first 4 decimals are identical.

The spelling of 274625081 in words is "two hundred seventy-four million, six hundred twenty-five thousand, eighty-one".