274640473 has 2 divisors, whose sum is σ = 274640474. Its totient is φ = 274640472.

The previous prime is 274640449. The next prime is 274640477. The reversal of 274640473 is 374046472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255744064 + 18896409 = 15992^2 + 4347^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-274640473 is a prime.

It is not a weakly prime, because it can be changed into another prime (274640477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137320236 + 137320237.

It is an arithmetic number, because the mean of its divisors is an integer number (137320237).

Almost surely, 2^274640473 is an apocalyptic number.

It is an amenable number.

274640473 is a deficient number, since it is larger than the sum of its proper divisors (1).

274640473 is an equidigital number, since it uses as much as digits as its factorization.

274640473 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 37.

The square root of 274640473 is about 16572.2802595177. The cubic root of 274640473 is about 650.0122072658.

The spelling of 274640473 in words is "two hundred seventy-four million, six hundred forty thousand, four hundred seventy-three".