274747457 has 2 divisors, whose sum is σ = 274747458. Its totient is φ = 274747456.

The previous prime is 274747439. The next prime is 274747463. The reversal of 274747457 is 754747472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 159163456 + 115584001 = 12616^2 + 10751^2 .

It is a cyclic number.

It is not a de Polignac number, because 274747457 - 2¹⁶ = 274681921 is a prime.

It is not a weakly prime, because it can be changed into another prime (274747427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137373728 + 137373729.

It is an arithmetic number, because the mean of its divisors is an integer number (137373729).

Almost surely, 2^274747457 is an apocalyptic number.

It is an amenable number.

274747457 is a deficient number, since it is larger than the sum of its proper divisors (1).

274747457 is an equidigital number, since it uses as much as digits as its factorization.

274747457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1536640, while the sum is 47.

The square root of 274747457 is about 16575.5077448626. The cubic root of 274747457 is about 650.0965986612.

The spelling of 274747457 in words is "two hundred seventy-four million, seven hundred forty-seven thousand, four hundred fifty-seven".