1345715855 has 32 divisors (see below), whose sum is σ = 1901698560. Its totient is φ = 903844480.

The previous prime is 1345715849. The next prime is 1345715857. The reversal of 1345715855 is 5585175431.

It is a Cunningham number, because it is equal to 36684²-1.

It is not a de Polignac number, because 1345715855 - 2²² = 1341521551 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1345715857) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18344 + ... + 55026.

It is an arithmetic number, because the mean of its divisors is an integer number (59428080).

Almost surely, 2^1345715855 is an apocalyptic number.

1345715855 is a deficient number, since it is larger than the sum of its proper divisors (555982705).

1345715855 is a wasteful number, since it uses less digits than its factorization.

1345715855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36751.

The product of its digits is 420000, while the sum is 44.

The square root of 1345715855 is about 36683.9999863701. Note that the first 4 decimals coincide. The cubic root of 1345715855 is about 1104.0391051466.

The spelling of 1345715855 in words is "one billion, three hundred forty-five million, seven hundred fifteen thousand, eight hundred fifty-five".