12811234 has 8 divisors (see below), whose sum is σ = 20347308. Its totient is φ = 6028800.

The previous prime is 12811231. The next prime is 12811237. The reversal of 12811234 is 43211821.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12811231) and next prime (12811237).

It can be written as a sum of positive squares in 2 ways, for example, as 12271009 + 540225 = 3503^2 + 735^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (12811231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188367 + ... + 188434.

Almost surely, 2^12811234 is an apocalyptic number.

12811234 is a deficient number, since it is larger than the sum of its proper divisors (7536074).

12811234 is a wasteful number, since it uses less digits than its factorization.

12811234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 376820.

The product of its digits is 384, while the sum is 22.

The square root of 12811234 is about 3579.2784188995. The cubic root of 12811234 is about 233.9898332447.

The spelling of 12811234 in words is "twelve million, eight hundred eleven thousand, two hundred thirty-four".