1913283349 has 4 divisors (see below), whose sum is σ = 1913632236. Its totient is φ = 1912934464.

The previous prime is 1913283331. The next prime is 1913283391. The reversal of 1913283349 is 9433823191.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 740220849 + 1173062500 = 27207^2 + 34250^2 .

It is a cyclic number.

It is not a de Polignac number, because 1913283349 - 2⁹ = 1913282837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1913283319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166084 + ... + 177229.

It is an arithmetic number, because the mean of its divisors is an integer number (478408059).

Almost surely, 2^1913283349 is an apocalyptic number.

It is an amenable number.

1913283349 is a deficient number, since it is larger than the sum of its proper divisors (348887).

1913283349 is an equidigital number, since it uses as much as digits as its factorization.

1913283349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348886.

The product of its digits is 139968, while the sum is 43.

The square root of 1913283349 is about 43741.0945107687. The cubic root of 1913283349 is about 1241.4419898708.

The spelling of 1913283349 in words is "one billion, nine hundred thirteen million, two hundred eighty-three thousand, three hundred forty-nine".