808619145 has 16 divisors (see below), whose sum is σ = 1318203072. Its totient is φ = 423126080.

The previous prime is 808619143. The next prime is 808619153. The reversal of 808619145 is 541916808.

It is not a de Polignac number, because 808619145 - 2¹ = 808619143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 808619097 and 808619106.

It is not an unprimeable number, because it can be changed into a prime (808619143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507771 + ... + 509360.

It is an arithmetic number, because the mean of its divisors is an integer number (82387692).

Almost surely, 2^808619145 is an apocalyptic number.

It is an amenable number.

808619145 is a deficient number, since it is larger than the sum of its proper divisors (509583927).

808619145 is a wasteful number, since it uses less digits than its factorization.

808619145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017192.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 808619145 is about 28436.2294441440. The cubic root of 808619145 is about 931.6397421538.

The spelling of 808619145 in words is "eight hundred eight million, six hundred nineteen thousand, one hundred forty-five".