12082905 has 64 divisors (see below), whose sum is σ = 22982400. Its totient is φ = 6013440.

The previous prime is 12082897. The next prime is 12082919. The reversal of 12082905 is 50928021.

It is not a de Polignac number, because 12082905 - 2³ = 12082897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 204766 + ... + 204824.

It is an arithmetic number, because the mean of its divisors is an integer number (359100).

Almost surely, 2^12082905 is an apocalyptic number.

12082905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12082905 is a deficient number, since it is larger than the sum of its proper divisors (10899495).

12082905 is a wasteful number, since it uses less digits than its factorization.

12082905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 145 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 12082905 is about 3476.0473241888. The cubic root of 12082905 is about 229.4688752699.

The spelling of 12082905 in words is "twelve million, eighty-two thousand, nine hundred five".