1274918285 has 4 divisors (see below), whose sum is σ = 1529901948. Its totient is φ = 1019934624.

The previous prime is 1274918279. The next prime is 1274918299. The reversal of 1274918285 is 5828194721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5828194721 = 47 ⋅124004143.

It can be written as a sum of positive squares in 2 ways, for example, as 726140809 + 548777476 = 26947^2 + 23426^2 .

It is a cyclic number.

It is not a de Polignac number, because 1274918285 - 2⁴ = 1274918269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127491824 + ... + 127491833.

It is an arithmetic number, because the mean of its divisors is an integer number (382475487).

Almost surely, 2^1274918285 is an apocalyptic number.

It is an amenable number.

1274918285 is a deficient number, since it is larger than the sum of its proper divisors (254983663).

1274918285 is an equidigital number, since it uses as much as digits as its factorization.

1274918285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254983662.

The product of its digits is 322560, while the sum is 47.

The square root of 1274918285 is about 35705.9978855094. The cubic root of 1274918285 is about 1084.3282766980.

The spelling of 1274918285 in words is "one billion, two hundred seventy-four million, nine hundred eighteen thousand, two hundred eighty-five".