274733161 has 2 divisors, whose sum is σ = 274733162. Its totient is φ = 274733160.

The previous prime is 274733159. The next prime is 274733167. The reversal of 274733161 is 161337472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 274101136 + 632025 = 16556^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 274733161 - 2¹ = 274733159 is a prime.

Together with 274733159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (274733167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137366580 + 137366581.

It is an arithmetic number, because the mean of its divisors is an integer number (137366581).

Almost surely, 2^274733161 is an apocalyptic number.

It is an amenable number.

274733161 is a deficient number, since it is larger than the sum of its proper divisors (1).

274733161 is an equidigital number, since it uses as much as digits as its factorization.

274733161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 21168, while the sum is 34.

The square root of 274733161 is about 16575.0765005776. The cubic root of 274733161 is about 650.0853229218.

The spelling of 274733161 in words is "two hundred seventy-four million, seven hundred thirty-three thousand, one hundred sixty-one".