274650161 has 2 divisors, whose sum is σ = 274650162. Its totient is φ = 274650160.

The previous prime is 274650151. The next prime is 274650191. The reversal of 274650161 is 161056472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 272910400 + 1739761 = 16520^2 + 1319^2 .

It is a cyclic number.

It is not a de Polignac number, because 274650161 - 2¹⁸ = 274388017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (274650151) 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, 137325080 + 137325081.

It is an arithmetic number, because the mean of its divisors is an integer number (137325081).

Almost surely, 2^274650161 is an apocalyptic number.

It is an amenable number.

274650161 is a deficient number, since it is larger than the sum of its proper divisors (1).

274650161 is an equidigital number, since it uses as much as digits as its factorization.

274650161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 32.

The square root of 274650161 is about 16572.5725522624. The cubic root of 274650161 is about 650.0198502814.

The spelling of 274650161 in words is "two hundred seventy-four million, six hundred fifty thousand, one hundred sixty-one".