13851434 has 4 divisors (see below), whose sum is σ = 20777154. Its totient is φ = 6925716.

The previous prime is 13851433. The next prime is 13851457. The reversal of 13851434 is 43415831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11458225 + 2393209 = 3385^2 + 1547^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13851397 and 13851406.

It is not an unprimeable number, because it can be changed into a prime (13851433) by changing a digit.

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 as a sum of consecutive naturals, namely, 3462857 + ... + 3462860.

Almost surely, 2^13851434 is an apocalyptic number.

13851434 is a deficient number, since it is larger than the sum of its proper divisors (6925720).

13851434 is an equidigital number, since it uses as much as digits as its factorization.

13851434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6925719.

The product of its digits is 5760, while the sum is 29.

The square root of 13851434 is about 3721.7514694025. The cubic root of 13851434 is about 240.1586566679.

The spelling of 13851434 in words is "thirteen million, eight hundred fifty-one thousand, four hundred thirty-four".