12961854 has 24 divisors (see below), whose sum is σ = 29736720. Its totient is φ = 4066368.

The previous prime is 12961849. The next prime is 12961867. The reversal of 12961854 is 45816921.

12961854 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

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, 20874 + ... + 21485.

It is an arithmetic number, because the mean of its divisors is an integer number (1239030).

Almost surely, 2^12961854 is an apocalyptic number.

12961854 is an abundant number, since it is smaller than the sum of its proper divisors (16774866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12961854 is a wasteful number, since it uses less digits than its factorization.

12961854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42384 (or 42381 counting only the distinct ones).

The product of its digits is 17280, while the sum is 36.

The square root of 12961854 is about 3600.2574907915. The cubic root of 12961854 is about 234.9032588074.

The spelling of 12961854 in words is "twelve million, nine hundred sixty-one thousand, eight hundred fifty-four".