143013131 has 4 divisors (see below), whose sum is σ = 144401712. Its totient is φ = 141624552.

The previous prime is 143013083. The next prime is 143013179. The reversal of 143013131 is 131310341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 131310341 = 59 ⋅2225599.

It is an interprime number because it is at equal distance from previous prime (143013083) and next prime (143013179).

It is a cyclic number.

It is not a de Polignac number, because 143013131 - 2¹⁸ = 142750987 is a prime.

It is a super-2 number, since 2×143013131² = 40905511276846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143013191) 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, 694136 + ... + 694341.

It is an arithmetic number, because the mean of its divisors is an integer number (36100428).

Almost surely, 2^143013131 is an apocalyptic number.

143013131 is a deficient number, since it is larger than the sum of its proper divisors (1388581).

143013131 is a wasteful number, since it uses less digits than its factorization.

143013131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1388580.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 143013131 is about 11958.8097651898. The cubic root of 143013131 is about 522.9481587978.

Adding to 143013131 its reverse (131310341), we get a palindrome (274323472).

The spelling of 143013131 in words is "one hundred forty-three million, thirteen thousand, one hundred thirty-one".