808123545 has 12 divisors (see below), whose sum is σ = 1400747556. Its totient is φ = 430999200.

The previous prime is 808123529. The next prime is 808123559. The reversal of 808123545 is 545321808.

It is a happy number.

808123545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 595896921 + 212226624 = 24411^2 + 14568^2 .

It is not a de Polignac number, because 808123545 - 2⁴ = 808123529 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8979106 + ... + 8979195.

It is an arithmetic number, because the mean of its divisors is an integer number (116728963).

Almost surely, 2^808123545 is an apocalyptic number.

It is an amenable number.

808123545 is a deficient number, since it is larger than the sum of its proper divisors (592624011).

808123545 is a wasteful number, since it uses less digits than its factorization.

808123545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17958312 (or 17958309 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 808123545 is about 28427.5138730069. The cubic root of 808123545 is about 931.4493702834.

It can be divided in two parts, 8081 and 23545, that added together give a triangular number (31626 = T₂₅₁).

The spelling of 808123545 in words is "eight hundred eight million, one hundred twenty-three thousand, five hundred forty-five".