12156834 has 16 divisors (see below), whose sum is σ = 25371072. Its totient is φ = 3876048.

The previous prime is 12156799. The next prime is 12156841. The reversal of 12156834 is 43865121.

It is a super-2 number, since 2×12156834² = 295577225807112, which contains 22 as substring.

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, 43909 + ... + 44184.

It is an arithmetic number, because the mean of its divisors is an integer number (1585692).

Almost surely, 2^12156834 is an apocalyptic number.

12156834 is an abundant number, since it is smaller than the sum of its proper divisors (13214238).

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

12156834 is a wasteful number, since it uses less digits than its factorization.

12156834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88121.

The product of its digits is 5760, while the sum is 30.

The square root of 12156834 is about 3486.6651688971. The cubic root of 12156834 is about 229.9359241797.

The spelling of 12156834 in words is "twelve million, one hundred fifty-six thousand, eight hundred thirty-four".