1391163126 has 8 divisors (see below), whose sum is σ = 2782326264. Its totient is φ = 463721040.

The previous prime is 1391163077. The next prime is 1391163149. The reversal of 1391163126 is 6213611931.

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

1391163126 is an admirable number.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

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, 115930255 + ... + 115930266.

It is an arithmetic number, because the mean of its divisors is an integer number (347790783).

Almost surely, 2^1391163126 is an apocalyptic number.

1391163126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1391163126 is a wasteful number, since it uses less digits than its factorization.

1391163126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231860526.

The product of its digits is 5832, while the sum is 33.

The square root of 1391163126 is about 37298.2992373647. The cubic root of 1391163126 is about 1116.3302310843.

The spelling of 1391163126 in words is "one billion, three hundred ninety-one million, one hundred sixty-three thousand, one hundred twenty-six".