1345852691 has 8 divisors (see below), whose sum is σ = 1376949024. Its totient is φ = 1314967680.

The previous prime is 1345852681. The next prime is 1345852709. The reversal of 1345852691 is 1962585431.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345852691 is a prime.

It is a super-2 number, since 2×1345852691² = 3622638931743882962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1345852681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39911 + ... + 65456.

It is an arithmetic number, because the mean of its divisors is an integer number (172118628).

Almost surely, 2^1345852691 is an apocalyptic number.

1345852691 is a deficient number, since it is larger than the sum of its proper divisors (31096333).

1345852691 is a wasteful number, since it uses less digits than its factorization.

1345852691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105661.

The product of its digits is 259200, while the sum is 44.

The square root of 1345852691 is about 36685.8650027500. The cubic root of 1345852691 is about 1104.0765244315.

The spelling of 1345852691 in words is "one billion, three hundred forty-five million, eight hundred fifty-two thousand, six hundred ninety-one".