1299675545 has 16 divisors (see below), whose sum is σ = 1782997248. Its totient is φ = 890913600.

The previous prime is 1299675539. The next prime is 1299675557. The reversal of 1299675545 is 5455769921.

It is not a de Polignac number, because 1299675545 - 2⁴ = 1299675529 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 208220 + ... + 214370.

It is an arithmetic number, because the mean of its divisors is an integer number (111437328).

Almost surely, 2^1299675545 is an apocalyptic number.

It is an amenable number.

1299675545 is a deficient number, since it is larger than the sum of its proper divisors (483321703).

1299675545 is an equidigital number, since it uses as much as digits as its factorization.

1299675545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12200.

The product of its digits is 3402000, while the sum is 53.

The square root of 1299675545 is about 36051.0130925609. The cubic root of 1299675545 is about 1091.3020786146.

The spelling of 1299675545 in words is "one billion, two hundred ninety-nine million, six hundred seventy-five thousand, five hundred forty-five".