1299463249 has 8 divisors (see below), whose sum is σ = 1485967808. Its totient is φ = 1113175440.

The previous prime is 1299463237. The next prime is 1299463261. The reversal of 1299463249 is 9423649921.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1299463237) and next prime (1299463261).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1299463249 - 2⁹ = 1299462737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1299403249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41127 + ... + 65500.

It is an arithmetic number, because the mean of its divisors is an integer number (185745976).

Almost surely, 2^1299463249 is an apocalyptic number.

It is an amenable number.

1299463249 is a deficient number, since it is larger than the sum of its proper divisors (186504559).

1299463249 is a wasteful number, since it uses less digits than its factorization.

1299463249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108375.

The product of its digits is 839808, while the sum is 49.

The square root of 1299463249 is about 36048.0685890382. The cubic root of 1299463249 is about 1091.2426556602.

The spelling of 1299463249 in words is "one billion, two hundred ninety-nine million, four hundred sixty-three thousand, two hundred forty-nine".