13831634 has 4 divisors (see below), whose sum is σ = 20747454. Its totient is φ = 6915816.

The previous prime is 13831633. The next prime is 13831667. The reversal of 13831634 is 43613831.

13831634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43613831 = 1249 ⋅34919.

It can be written as a sum of positive squares in only one way, i.e., 8323225 + 5508409 = 2885^2 + 2347^2 .

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 13831597 and 13831606.

It is not an unprimeable number, because it can be changed into a prime (13831633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3457907 + ... + 3457910.

Almost surely, 2^13831634 is an apocalyptic number.

13831634 is a deficient number, since it is larger than the sum of its proper divisors (6915820).

13831634 is an equidigital number, since it uses as much as digits as its factorization.

13831634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6915819.

The product of its digits is 5184, while the sum is 29.

The square root of 13831634 is about 3719.0904802115. The cubic root of 13831634 is about 240.0441701111.

The spelling of 13831634 in words is "thirteen million, eight hundred thirty-one thousand, six hundred thirty-four".