1345504645 has 8 divisors (see below), whose sum is σ = 1619260704. Its totient is φ = 1073300304.

The previous prime is 1345504639. The next prime is 1345504651. The reversal of 1345504645 is 5464055431.

It is an interprime number because it is at equal distance from previous prime (1345504639) and next prime (1345504651).

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

It is a cyclic number.

It is not a de Polignac number, because 1345504645 - 2³ = 1345504637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 386019 + ... + 389488.

It is an arithmetic number, because the mean of its divisors is an integer number (202407588).

Almost surely, 2^1345504645 is an apocalyptic number.

It is an amenable number.

1345504645 is a deficient number, since it is larger than the sum of its proper divisors (273756059).

1345504645 is an equidigital number, since it uses as much as digits as its factorization.

1345504645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775859.

The product of its (nonzero) digits is 144000, while the sum is 37.

The square root of 1345504645 is about 36681.1210979163. The cubic root of 1345504645 is about 1103.9813425070.

The spelling of 1345504645 in words is "one billion, three hundred forty-five million, five hundred four thousand, six hundred forty-five".