1345322819 has 4 divisors (see below), whose sum is σ = 1345418880. Its totient is φ = 1345226760.

The previous prime is 1345322809. The next prime is 1345322833. The reversal of 1345322819 is 9182235431.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345322819 is a prime.

It is a super-2 number, since 2×1345322819² = 3619786974644213522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345322809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22499 + ... + 56540.

It is an arithmetic number, because the mean of its divisors is an integer number (336354720).

Almost surely, 2^1345322819 is an apocalyptic number.

1345322819 is a deficient number, since it is larger than the sum of its proper divisors (96061).

1345322819 is an equidigital number, since it uses as much as digits as its factorization.

1345322819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96060.

The product of its digits is 51840, while the sum is 38.

The square root of 1345322819 is about 36678.6425457650. The cubic root of 1345322819 is about 1103.9316110909.

The spelling of 1345322819 in words is "one billion, three hundred forty-five million, three hundred twenty-two thousand, eight hundred nineteen".