1271051274 has 48 divisors (see below), whose sum is σ = 2781480384. Its totient is φ = 385868160.

The previous prime is 1271051263. The next prime is 1271051279. The reversal of 1271051274 is 4721501721.

It is a super-2 number, since 2×1271051274² = 3231142682274046152, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1271051279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 91539 + ... + 104505.

It is an arithmetic number, because the mean of its divisors is an integer number (57947508).

Almost surely, 2^1271051274 is an apocalyptic number.

1271051274 is an abundant number, since it is smaller than the sum of its proper divisors (1510429110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1271051274 is a wasteful number, since it uses less digits than its factorization.

1271051274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13051 (or 13020 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 30.

The square root of 1271051274 is about 35651.8060412092. The cubic root of 1271051274 is about 1083.2308583990.

Adding to 1271051274 its reverse (4721501721), we get a palindrome (5992552995).

The spelling of 1271051274 in words is "one billion, two hundred seventy-one million, fifty-one thousand, two hundred seventy-four".