1299992139157 has 8 divisors (see below), whose sum is σ = 1394231888160. Its totient is φ = 1208334301200.

The previous prime is 1299992139151. The next prime is 1299992139181. The reversal of 1299992139157 is 7519312999921.

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

It is not a de Polignac number, because 1299992139157 - 2⁷ = 1299992139029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1299992139092 and 1299992139101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299992139151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 645476719 + ... + 645478732.

It is an arithmetic number, because the mean of its divisors is an integer number (174278986020).

Almost surely, 2^{1299992139157} is an apocalyptic number.

It is an amenable number.

1299992139157 is a deficient number, since it is larger than the sum of its proper divisors (94239749003).

1299992139157 is a wasteful number, since it uses less digits than its factorization.

1299992139157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290955523.

The product of its digits is 24800580, while the sum is 67.

The spelling of 1299992139157 in words is "one trillion, two hundred ninety-nine billion, nine hundred ninety-two million, one hundred thirty-nine thousand, one hundred fifty-seven".