1941313819 has 4 divisors (see below), whose sum is σ = 1986460696. Its totient is φ = 1896166944.

The previous prime is 1941313813. The next prime is 1941313823. The reversal of 1941313819 is 9183131491.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9183131491 = 37 ⋅248192743.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1941313819 is a prime.

It is a super-2 number, since 2×1941313819² = 7537398687680729522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1941313813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22573374 + ... + 22573459.

It is an arithmetic number, because the mean of its divisors is an integer number (496615174).

Almost surely, 2^1941313819 is an apocalyptic number.

1941313819 is a deficient number, since it is larger than the sum of its proper divisors (45146877).

1941313819 is an equidigital number, since it uses as much as digits as its factorization.

1941313819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45146876.

The product of its digits is 23328, while the sum is 40.

The square root of 1941313819 is about 44060.3429287608. The cubic root of 1941313819 is about 1247.4751850679.

The spelling of 1941313819 in words is "one billion, nine hundred forty-one million, three hundred thirteen thousand, eight hundred nineteen".