13543742 has 4 divisors (see below), whose sum is σ = 20315616. Its totient is φ = 6771870.

The previous prime is 13543729. The next prime is 13543759. The reversal of 13543742 is 24734531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24734531 = 1493 ⋅16567.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3385934 + ... + 3385937.

It is an arithmetic number, because the mean of its divisors is an integer number (5078904).

Almost surely, 2^13543742 is an apocalyptic number.

13543742 is a deficient number, since it is larger than the sum of its proper divisors (6771874).

13543742 is an equidigital number, since it uses as much as digits as its factorization.

13543742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6771873.

The product of its digits is 10080, while the sum is 29.

The square root of 13543742 is about 3680.1823324395. The cubic root of 13543742 is about 238.3670512660.

The spelling of 13543742 in words is "thirteen million, five hundred forty-three thousand, seven hundred forty-two".