1274798853 has 12 divisors (see below), whose sum is σ = 1853736300. Its totient is φ = 844161216.

The previous prime is 1274798843. The next prime is 1274798879. The reversal of 1274798853 is 3588974721.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 554037444 + 720761409 = 23538^2 + 26847^2 .

It is not a de Polignac number, because 1274798853 - 2⁵ = 1274798821 is a prime.

It is a super-2 number, since 2×1274798853² = 3250224231220231218, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1274798853.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1274798843) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 473976 + ... + 476657.

It is an arithmetic number, because the mean of its divisors is an integer number (154478025).

Almost surely, 2^1274798853 is an apocalyptic number.

It is an amenable number.

1274798853 is a deficient number, since it is larger than the sum of its proper divisors (578937447).

1274798853 is a wasteful number, since it uses less digits than its factorization.

1274798853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 950788 (or 950785 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 54.

The square root of 1274798853 is about 35704.3254102357. The cubic root of 1274798853 is about 1084.2944163478.

The spelling of 1274798853 in words is "one billion, two hundred seventy-four million, seven hundred ninety-eight thousand, eight hundred fifty-three".