1271225288 has 16 divisors (see below), whose sum is σ = 2384167500. Its totient is φ = 635447296.

The previous prime is 1271225281. The next prime is 1271225323. The reversal of 1271225288 is 8825221721.

It can be written as a sum of positive squares in 2 ways, for example, as 1264371364 + 6853924 = 35558^2 + 2618^2 .

It is not an unprimeable number, because it can be changed into a prime (1271225281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15788 + ... + 52836.

Almost surely, 2^1271225288 is an apocalyptic number.

It is an amenable number.

1271225288 is a deficient number, since it is larger than the sum of its proper divisors (1112942212).

1271225288 is a wasteful number, since it uses less digits than its factorization.

1271225288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41344 (or 41340 counting only the distinct ones).

The product of its digits is 35840, while the sum is 38.

The square root of 1271225288 is about 35654.2464231121. The cubic root of 1271225288 is about 1083.2802895896.

The spelling of 1271225288 in words is "one billion, two hundred seventy-one million, two hundred twenty-five thousand, two hundred eighty-eight".