1316935091 has 2 divisors, whose sum is σ = 1316935092. Its totient is φ = 1316935090.

The previous prime is 1316935079. The next prime is 1316935231. The reversal of 1316935091 is 1905396131.

It is a weak prime.

It is an emirp because it is prime and its reverse (1905396131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1316935091 - 2⁶ = 1316935027 is a prime.

It is not a weakly prime, because it can be changed into another prime (1316905091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658467545 + 658467546.

It is an arithmetic number, because the mean of its divisors is an integer number (658467546).

Almost surely, 2^1316935091 is an apocalyptic number.

1316935091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316935091 is an equidigital number, since it uses as much as digits as its factorization.

1316935091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21870, while the sum is 38.

The square root of 1316935091 is about 36289.6003146907. The cubic root of 1316935091 is about 1096.1116407646. Note that the first 3 decimals are identical.

The spelling of 1316935091 in words is "one billion, three hundred sixteen million, nine hundred thirty-five thousand, ninety-one".