13613534 has 16 divisors (see below), whose sum is σ = 22431600. Its totient is φ = 6144960.

The previous prime is 13613533. The next prime is 13613563. The reversal of 13613534 is 43531631.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13613531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1202 + ... + 5354.

It is an arithmetic number, because the mean of its divisors is an integer number (1401975).

Almost surely, 2^13613534 is an apocalyptic number.

13613534 is a deficient number, since it is larger than the sum of its proper divisors (8818066).

13613534 is a wasteful number, since it uses less digits than its factorization.

13613534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4315.

The product of its digits is 3240, while the sum is 26.

The square root of 13613534 is about 3689.6522871403. The cubic root of 13613534 is about 238.7757915541.

The spelling of 13613534 in words is "thirteen million, six hundred thirteen thousand, five hundred thirty-four".