13985534 has 8 divisors (see below), whose sum is σ = 21374280. Its totient is φ = 6860776.

The previous prime is 13985533. The next prime is 13985561. The reversal of 13985534 is 43558931.

It is a happy number.

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

It is a super-2 number, since 2×13985534² = 391190322530312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13985533) 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, 65864 + ... + 66075.

It is an arithmetic number, because the mean of its divisors is an integer number (2671785).

Almost surely, 2^13985534 is an apocalyptic number.

13985534 is a deficient number, since it is larger than the sum of its proper divisors (7388746).

13985534 is a wasteful number, since it uses less digits than its factorization.

13985534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131994.

The product of its digits is 64800, while the sum is 38.

The square root of 13985534 is about 3739.7237865917. The cubic root of 13985534 is about 240.9311856236.

The spelling of 13985534 in words is "thirteen million, nine hundred eighty-five thousand, five hundred thirty-four".