1299080623 has 2 divisors, whose sum is σ = 1299080624. Its totient is φ = 1299080622.

The previous prime is 1299080617. The next prime is 1299080659. The reversal of 1299080623 is 3260809921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3260809921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1299080623 - 2⁵ = 1299080591 is a prime.

It is a super-2 number, since 2×1299080623² = 3375220930108136258, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299084623) by changing a digit.

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 as a sum of consecutive naturals, namely, 649540311 + 649540312.

It is an arithmetic number, because the mean of its divisors is an integer number (649540312).

Almost surely, 2^1299080623 is an apocalyptic number.

1299080623 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299080623 is an equidigital number, since it uses as much as digits as its factorization.

1299080623 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 1299080623 is about 36042.7610346377. The cubic root of 1299080623 is about 1091.1355399464.

The spelling of 1299080623 in words is "one billion, two hundred ninety-nine million, eighty thousand, six hundred twenty-three".