274506761 has 2 divisors, whose sum is σ = 274506762. Its totient is φ = 274506760.

The previous prime is 274506731. The next prime is 274506773. The reversal of 274506761 is 167605472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 140873161 + 133633600 = 11869^2 + 11560^2 .

It is a cyclic number.

It is not a de Polignac number, because 274506761 - 2²² = 270312457 is a prime.

It is a super-2 number, since 2×274506761² = 150707923669422242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (274506731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137253380 + 137253381.

It is an arithmetic number, because the mean of its divisors is an integer number (137253381).

Almost surely, 2^274506761 is an apocalyptic number.

It is an amenable number.

274506761 is a deficient number, since it is larger than the sum of its proper divisors (1).

274506761 is an equidigital number, since it uses as much as digits as its factorization.

274506761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 274506761 is about 16568.2455619175. The cubic root of 274506761 is about 649.9067014018.

The spelling of 274506761 in words is "two hundred seventy-four million, five hundred six thousand, seven hundred sixty-one".