13042143 has 6 divisors (see below), whose sum is σ = 18838664. Its totient is φ = 8694756.

The previous prime is 13042129. The next prime is 13042157. The reversal of 13042143 is 34124031.

It is an interprime number because it is at equal distance from previous prime (13042129) and next prime (13042157).

It is not a de Polignac number, because 13042143 - 2⁹ = 13041631 is a prime.

It is a super-3 number, since 3×13042143³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13042163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 724555 + ... + 724572.

Almost surely, 2^13042143 is an apocalyptic number.

13042143 is a deficient number, since it is larger than the sum of its proper divisors (5796521).

13042143 is a wasteful number, since it uses less digits than its factorization.

13042143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1449133 (or 1449130 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 13042143 is about 3611.3907293451. The cubic root of 13042143 is about 235.3872775209.

Adding to 13042143 its reverse (34124031), we get a palindrome (47166174).

The spelling of 13042143 in words is "thirteen million, forty-two thousand, one hundred forty-three".