1299428713 has 4 divisors (see below), whose sum is σ = 1417558608. Its totient is φ = 1181298820.

The previous prime is 1299428707. The next prime is 1299428729. The reversal of 1299428713 is 3178249921.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1299428713 - 2⁵ = 1299428681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1299428783) 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, 59064931 + ... + 59064952.

It is an arithmetic number, because the mean of its divisors is an integer number (354389652).

Almost surely, 2^1299428713 is an apocalyptic number.

It is an amenable number.

1299428713 is a deficient number, since it is larger than the sum of its proper divisors (118129895).

1299428713 is a wasteful number, since it uses less digits than its factorization.

1299428713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118129894.

The product of its digits is 217728, while the sum is 46.

The square root of 1299428713 is about 36047.5895588041. The cubic root of 1299428713 is about 1091.2329882096.

The spelling of 1299428713 in words is "one billion, two hundred ninety-nine million, four hundred twenty-eight thousand, seven hundred thirteen".