143801131 has 4 divisors (see below), whose sum is σ = 143904600. Its totient is φ = 143697664.

The previous prime is 143801123. The next prime is 143801143. The reversal of 143801131 is 131108341.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 143801131 - 2³ = 143801123 is a prime.

It is a super-2 number, since 2×143801131² = 41357530553758322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143801171) 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 3 ways as a sum of consecutive naturals, for example, 49621 + ... + 52438.

It is an arithmetic number, because the mean of its divisors is an integer number (35976150).

Almost surely, 2^143801131 is an apocalyptic number.

143801131 is a deficient number, since it is larger than the sum of its proper divisors (103469).

143801131 is a wasteful number, since it uses less digits than its factorization.

143801131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103468.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 143801131 is about 11991.7109288041. The cubic root of 143801131 is about 523.9068786894.

Adding to 143801131 its reverse (131108341), we get a palindrome (274909472).

The spelling of 143801131 in words is "one hundred forty-three million, eight hundred one thousand, one hundred thirty-one".