1345813479 has 24 divisors (see below), whose sum is σ = 1995630000. Its totient is φ = 873452160.

The previous prime is 1345813477. The next prime is 1345813481. The reversal of 1345813479 is 9743185431.

1345813479 is a `hidden beast` number, since 1 + 34 + 581 + 34 + 7 + 9 = 666.

It is an interprime number because it is at equal distance from previous prime (1345813477) and next prime (1345813481).

It is not a de Polignac number, because 1345813479 - 2¹ = 1345813477 is a prime.

It is a super-2 number, since 2×1345813479² = 3622427840516166882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345813477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 180477 + ... + 187785.

It is an arithmetic number, because the mean of its divisors is an integer number (83151250).

Almost surely, 2^1345813479 is an apocalyptic number.

1345813479 is a deficient number, since it is larger than the sum of its proper divisors (649816521).

1345813479 is a wasteful number, since it uses less digits than its factorization.

1345813479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7855 (or 7852 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 1345813479 is about 36685.3305695887. The cubic root of 1345813479 is about 1104.0658017451.

The spelling of 1345813479 in words is "one billion, three hundred forty-five million, eight hundred thirteen thousand, four hundred seventy-nine".