1299424517 has 2 divisors, whose sum is σ = 1299424518. Its totient is φ = 1299424516.

The previous prime is 1299424507. The next prime is 1299424519. The reversal of 1299424517 is 7154249921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1230185476 + 69239041 = 35074^2 + 8321^2 .

It is a cyclic number.

It is not a de Polignac number, because 1299424517 - 2⁶ = 1299424453 is a prime.

Together with 1299424519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1299424519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649712258 + 649712259.

It is an arithmetic number, because the mean of its divisors is an integer number (649712259).

Almost surely, 2^1299424517 is an apocalyptic number.

It is an amenable number.

1299424517 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299424517 is an equidigital number, since it uses as much as digits as its factorization.

1299424517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 44.

The square root of 1299424517 is about 36047.5313579169. The cubic root of 1299424517 is about 1091.2318136374.

The spelling of 1299424517 in words is "one billion, two hundred ninety-nine million, four hundred twenty-four thousand, five hundred seventeen".