1316819091 has 24 divisors (see below), whose sum is σ = 2049136320. Its totient is φ = 749991312.

The previous prime is 1316819039. The next prime is 1316819137. The reversal of 1316819091 is 1909186131.

It is not a de Polignac number, because 1316819091 - 2²¹ = 1314721939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1316819191) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30540 + ... + 59718.

It is an arithmetic number, because the mean of its divisors is an integer number (85380680).

Almost surely, 2^1316819091 is an apocalyptic number.

1316819091 is a deficient number, since it is larger than the sum of its proper divisors (732317229).

1316819091 is a wasteful number, since it uses less digits than its factorization.

1316819091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29503 (or 29496 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 39.

The square root of 1316819091 is about 36288.0020254629. The cubic root of 1316819091 is about 1096.0794567730.

The spelling of 1316819091 in words is "one billion, three hundred sixteen million, eight hundred nineteen thousand, ninety-one".