12781094 has 16 divisors (see below), whose sum is σ = 19897920. Its totient is φ = 6152640.

The previous prime is 12781081. The next prime is 12781103. The reversal of 12781094 is 49018721.

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 12781094.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5492 + ... + 7464.

It is an arithmetic number, because the mean of its divisors is an integer number (1243620).

Almost surely, 2^12781094 is an apocalyptic number.

12781094 is a deficient number, since it is larger than the sum of its proper divisors (7116826).

12781094 is a wasteful number, since it uses less digits than its factorization.

12781094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 12781094 is about 3575.0655938038. The cubic root of 12781094 is about 233.8061925587.

The spelling of 12781094 in words is "twelve million, seven hundred eighty-one thousand, ninety-four".