1365045805 has 32 divisors (see below), whose sum is σ = 1733477760. Its totient is φ = 1030444800.

The previous prime is 1365045779. The next prime is 1365045817. The reversal of 1365045805 is 5085405631.

It is a de Polignac number, because none of the positive numbers 2^k-1365045805 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1214974 + ... + 1216096.

It is an arithmetic number, because the mean of its divisors is an integer number (54171180).

Almost surely, 2^1365045805 is an apocalyptic number.

It is an amenable number.

1365045805 is a deficient number, since it is larger than the sum of its proper divisors (368431955).

1365045805 is a wasteful number, since it uses less digits than its factorization.

1365045805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341.

The product of its (nonzero) digits is 72000, while the sum is 37.

The square root of 1365045805 is about 36946.5262913850. The cubic root of 1365045805 is about 1109.3001580986.

The spelling of 1365045805 in words is "one billion, three hundred sixty-five million, forty-five thousand, eight hundred five".