13533742 has 4 divisors (see below), whose sum is σ = 20300616. Its totient is φ = 6766870.

The previous prime is 13533713. The next prime is 13533743. The reversal of 13533742 is 24733531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24733531 = 2521 ⋅9811.

It is a self number, because there is not a number n which added to its sum of digits gives 13533742.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13533743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3383434 + ... + 3383437.

It is an arithmetic number, because the mean of its divisors is an integer number (5075154).

Almost surely, 2^13533742 is an apocalyptic number.

13533742 is a deficient number, since it is larger than the sum of its proper divisors (6766874).

13533742 is an equidigital number, since it uses as much as digits as its factorization.

13533742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6766873.

The product of its digits is 7560, while the sum is 28.

The square root of 13533742 is about 3678.8234532252. The cubic root of 13533742 is about 238.3083708458.

The spelling of 13533742 in words is "thirteen million, five hundred thirty-three thousand, seven hundred forty-two".