1349775899 has 2 divisors, whose sum is σ = 1349775900. Its totient is φ = 1349775898.

The previous prime is 1349775887. The next prime is 1349775919. The reversal of 1349775899 is 9985779431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1349775899 - 2⁸ = 1349775643 is a prime.

It is not a weakly prime, because it can be changed into another prime (1349775829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 674887949 + 674887950.

It is an arithmetic number, because the mean of its divisors is an integer number (674887950).

Almost surely, 2^1349775899 is an apocalyptic number.

1349775899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1349775899 is an equidigital number, since it uses as much as digits as its factorization.

1349775899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 62.

The square root of 1349775899 is about 36739.2963868390. The cubic root of 1349775899 is about 1105.1482910121.

The spelling of 1349775899 in words is "one billion, three hundred forty-nine million, seven hundred seventy-five thousand, eight hundred ninety-nine".