1299352345 has 8 divisors (see below), whose sum is σ = 1575297864. Its totient is φ = 1028765184.

The previous prime is 1299352319. The next prime is 1299352393. The reversal of 1299352345 is 5432539921.

It can be written as a sum of positive squares in 4 ways, for example, as 207446409 + 1091905936 = 14403^2 + 33044^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1299352345 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1339054 + ... + 1340023.

It is an arithmetic number, because the mean of its divisors is an integer number (196912233).

Almost surely, 2^1299352345 is an apocalyptic number.

It is an amenable number.

1299352345 is a deficient number, since it is larger than the sum of its proper divisors (275945519).

1299352345 is an equidigital number, since it uses as much as digits as its factorization.

1299352345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2679179.

The product of its digits is 291600, while the sum is 43.

The square root of 1299352345 is about 36046.5302768519. The cubic root of 1299352345 is about 1091.2116103758.

The spelling of 1299352345 in words is "one billion, two hundred ninety-nine million, three hundred fifty-two thousand, three hundred forty-five".