1299924523 has 2 divisors, whose sum is σ = 1299924524. Its totient is φ = 1299924522.

The previous prime is 1299924497. The next prime is 1299924547. The reversal of 1299924523 is 3254299921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1299924523 - 2⁹ = 1299924011 is a prime.

It is not a weakly prime, because it can be changed into another prime (1299924323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 649962261 + 649962262.

It is an arithmetic number, because the mean of its divisors is an integer number (649962262).

Almost surely, 2^1299924523 is an apocalyptic number.

1299924523 is a deficient number, since it is larger than the sum of its proper divisors (1).

1299924523 is an equidigital number, since it uses as much as digits as its factorization.

1299924523 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 349920, while the sum is 46.

The square root of 1299924523 is about 36054.4660617794. The cubic root of 1299924523 is about 1091.3717608419.

The spelling of 1299924523 in words is "one billion, two hundred ninety-nine million, nine hundred twenty-four thousand, five hundred twenty-three".