1299271675 has 12 divisors (see below), whose sum is σ = 1735027840. Its totient is φ = 959461920.

The previous prime is 1299271667. The next prime is 1299271691. The reversal of 1299271675 is 5761729921.

It is a happy number.

It is not a de Polignac number, because 1299271675 - 2³ = 1299271667 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1998555 + ... + 1999204.

Almost surely, 2^1299271675 is an apocalyptic number.

1299271675 is a deficient number, since it is larger than the sum of its proper divisors (435756165).

1299271675 is a wasteful number, since it uses less digits than its factorization.

1299271675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3997782 (or 3997777 counting only the distinct ones).

The product of its digits is 476280, while the sum is 49.

The square root of 1299271675 is about 36045.4112890948. The cubic root of 1299271675 is about 1091.1890273654.

The spelling of 1299271675 in words is "one billion, two hundred ninety-nine million, two hundred seventy-one thousand, six hundred seventy-five".