12292905 has 16 divisors (see below), whose sum is σ = 20704320. Its totient is φ = 6211008.

The previous prime is 12292877. The next prime is 12292913. The reversal of 12292905 is 50929221.

12292905 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12292905 - 2⁹ = 12292393 is a prime.

It is a super-2 number, since 2×12292905² = 302231026678050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21282 + ... + 21851.

It is an arithmetic number, because the mean of its divisors is an integer number (1294020).

Almost surely, 2^12292905 is an apocalyptic number.

12292905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12292905 is a deficient number, since it is larger than the sum of its proper divisors (8411415).

12292905 is a wasteful number, since it uses less digits than its factorization.

12292905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43160.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 12292905 is about 3506.1239282147. The cubic root of 12292905 is about 230.7906313059.

The spelling of 12292905 in words is "twelve million, two hundred ninety-two thousand, nine hundred five".