1299992139146 has 8 divisors (see below), whose sum is σ = 1950388056900. Its totient is φ = 649862786848.

The previous prime is 1299992139133. The next prime is 1299992139151. The reversal of 1299992139146 is 6419312999921.

It can be written as a sum of positive squares in 2 ways, for example, as 1215362929225 + 84629209921 = 1102435^2 + 290911^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66629171 + ... + 66648678.

Almost surely, 2^{1299992139146} is an apocalyptic number.

1299992139146 is a deficient number, since it is larger than the sum of its proper divisors (650395917754).

1299992139146 is a wasteful number, since it uses less digits than its factorization.

1299992139146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133282728.

The product of its digits is 17006112, while the sum is 65.

The spelling of 1299992139146 in words is "one trillion, two hundred ninety-nine billion, nine hundred ninety-two million, one hundred thirty-nine thousand, one hundred forty-six".