274634137 has 2 divisors, whose sum is σ = 274634138. Its totient is φ = 274634136.

The previous prime is 274634123. The next prime is 274634141. The reversal of 274634137 is 731436472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151068681 + 123565456 = 12291^2 + 11116^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274634137 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 274634096 and 274634105.

It is not a weakly prime, because it can be changed into another prime (274634837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137317068 + 137317069.

It is an arithmetic number, because the mean of its divisors is an integer number (137317069).

Almost surely, 2^274634137 is an apocalyptic number.

It is an amenable number.

274634137 is a deficient number, since it is larger than the sum of its proper divisors (1).

274634137 is an equidigital number, since it uses as much as digits as its factorization.

274634137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The square root of 274634137 is about 16572.0890958262. The cubic root of 274634137 is about 650.0072085986.

The spelling of 274634137 in words is "two hundred seventy-four million, six hundred thirty-four thousand, one hundred thirty-seven".