1311148276 has 12 divisors (see below), whose sum is σ = 2415273280. Its totient is φ = 621070200.

The previous prime is 1311148271. The next prime is 1311148277. The reversal of 1311148276 is 6728411131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311148271) 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, 8625900 + ... + 8626051.

Almost surely, 2^1311148276 is an apocalyptic number.

It is an amenable number.

1311148276 is a deficient number, since it is larger than the sum of its proper divisors (1104125004).

1311148276 is a wasteful number, since it uses less digits than its factorization.

1311148276 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17251974 (or 17251972 counting only the distinct ones).

The product of its digits is 8064, while the sum is 34.

The square root of 1311148276 is about 36209.7814961648. The cubic root of 1311148276 is about 1094.5037891265.

The spelling of 1311148276 in words is "one billion, three hundred eleven million, one hundred forty-eight thousand, two hundred seventy-six".