13642143 has 8 divisors (see below), whose sum is σ = 19259568. Its totient is φ = 8559744.

The previous prime is 13642103. The next prime is 13642163. The reversal of 13642143 is 34124631.

13642143 is digitally balanced in base 2, base 3 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 13642143 - 2¹⁸ = 13379999 is a prime.

It is a super-2 number, since 2×13642143² = 372216131264898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13642103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 133696 + ... + 133797.

It is an arithmetic number, because the mean of its divisors is an integer number (2407446).

Almost surely, 2^13642143 is an apocalyptic number.

13642143 is a deficient number, since it is larger than the sum of its proper divisors (5617425).

13642143 is a wasteful number, since it uses less digits than its factorization.

13642143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267513.

The product of its digits is 1728, while the sum is 24.

The square root of 13642143 is about 3693.5271760202. The cubic root of 13642143 is about 238.9429378896.

Adding to 13642143 its reverse (34124631), we get a palindrome (47766774).

The spelling of 13642143 in words is "thirteen million, six hundred forty-two thousand, one hundred forty-three".