1299454223 has 4 divisors (see below), whose sum is σ = 1299526728. Its totient is φ = 1299381720.

The previous prime is 1299454157. The next prime is 1299454231. The reversal of 1299454223 is 3224549921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1299454223 - 2¹² = 1299450127 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 (1299454523) 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, 12365 + ... + 52457.

It is an arithmetic number, because the mean of its divisors is an integer number (324881682).

Almost surely, 2^1299454223 is an apocalyptic number.

1299454223 is a deficient number, since it is larger than the sum of its proper divisors (72505).

1299454223 is an equidigital number, since it uses as much as digits as its factorization.

1299454223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72504.

The product of its digits is 155520, while the sum is 41.

The square root of 1299454223 is about 36047.9433948734. The cubic root of 1299454223 is about 1091.2401290839.

The spelling of 1299454223 in words is "one billion, two hundred ninety-nine million, four hundred fifty-four thousand, two hundred twenty-three".