13643542 has 8 divisors (see below), whose sum is σ = 22325832. Its totient is φ = 6201600.

The previous prime is 13643533. The next prime is 13643549. The reversal of 13643542 is 24534631.

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

It is a super-2 number, since 2×13643542² = 372292476611528, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13643542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13643549) 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 in 3 ways as a sum of consecutive naturals, for example, 310059 + ... + 310102.

It is an arithmetic number, because the mean of its divisors is an integer number (2790729).

Almost surely, 2^13643542 is an apocalyptic number.

13643542 is a deficient number, since it is larger than the sum of its proper divisors (8682290).

13643542 is a wasteful number, since it uses less digits than its factorization.

13643542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620174.

The product of its digits is 8640, while the sum is 28.

The square root of 13643542 is about 3693.7165565322. The cubic root of 13643542 is about 238.9511054662.

The spelling of 13643542 in words is "thirteen million, six hundred forty-three thousand, five hundred forty-two".