274466561 has 2 divisors, whose sum is σ = 274466562. Its totient is φ = 274466560.

The previous prime is 274466557. The next prime is 274466573. The reversal of 274466561 is 165664472.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 181710400 + 92756161 = 13480^2 + 9631^2 .

It is a cyclic number.

It is not a de Polignac number, because 274466561 - 2² = 274466557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274466161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137233280 + 137233281.

It is an arithmetic number, because the mean of its divisors is an integer number (137233281).

Almost surely, 2^274466561 is an apocalyptic number.

It is an amenable number.

274466561 is a deficient number, since it is larger than the sum of its proper divisors (1).

274466561 is an equidigital number, since it uses as much as digits as its factorization.

274466561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 274466561 is about 16567.0323534422. The cubic root of 274466561 is about 649.8749747699.

The spelling of 274466561 in words is "two hundred seventy-four million, four hundred sixty-six thousand, five hundred sixty-one".