13581734 has 4 divisors (see below), whose sum is σ = 20372604. Its totient is φ = 6790866.

The previous prime is 13581719. The next prime is 13581739. The reversal of 13581734 is 43718531.

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

It is a self number, because there is not a number n which added to its sum of digits gives 13581734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13581739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3395432 + ... + 3395435.

It is an arithmetic number, because the mean of its divisors is an integer number (5093151).

Almost surely, 2^13581734 is an apocalyptic number.

13581734 is a deficient number, since it is larger than the sum of its proper divisors (6790870).

13581734 is an equidigital number, since it uses as much as digits as its factorization.

13581734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790869.

The product of its digits is 10080, while the sum is 32.

The square root of 13581734 is about 3685.3404184688. The cubic root of 13581734 is about 238.5897269584.

The spelling of 13581734 in words is "thirteen million, five hundred eighty-one thousand, seven hundred thirty-four".