1299971352 has 64 divisors (see below), whose sum is σ = 3278325600. Its totient is φ = 429557760.

The previous prime is 1299971341. The next prime is 1299971377. The reversal of 1299971352 is 2531799921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1833174 + ... + 1833882.

Almost surely, 2^1299971352 is an apocalyptic number.

1299971352 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1299971352 is an abundant number, since it is smaller than the sum of its proper divisors (1978354248).

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

1299971352 is a wasteful number, since it uses less digits than its factorization.

1299971352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1276 (or 1272 counting only the distinct ones).

The product of its digits is 306180, while the sum is 48.

The square root of 1299971352 is about 36055.1154761706. The cubic root of 1299971352 is about 1091.3848660219.

The spelling of 1299971352 in words is "one billion, two hundred ninety-nine million, nine hundred seventy-one thousand, three hundred fifty-two".