1299047 has 4 divisors (see below), whose sum is σ = 1303536. Its totient is φ = 1294560.

The previous prime is 1299041. The next prime is 1299059. The reversal of 1299047 is 7409921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1299047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299041) 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, 1778 + ... + 2399.

It is an arithmetic number, because the mean of its divisors is an integer number (325884).

2^1299047 is an apocalyptic number.

1299047 is a deficient number, since it is larger than the sum of its proper divisors (4489).

1299047 is an equidigital number, since it uses as much as digits as its factorization.

1299047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4488.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 1299047 is about 1139.7574303333. The cubic root of 1299047 is about 109.1126126221.

The spelling of 1299047 in words is "one million, two hundred ninety-nine thousand, forty-seven".