143141331 has 4 divisors (see below), whose sum is σ = 190855112. Its totient is φ = 95427552.

The previous prime is 143141329. The next prime is 143141357. The reversal of 143141331 is 133141341.

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

It is not a de Polignac number, because 143141331 - 2¹ = 143141329 is a prime.

It is a super-2 number, since 2×143141331² = 40978881280903122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143141298 and 143141307.

It is not an unprimeable number, because it can be changed into a prime (143141311) 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, 23856886 + ... + 23856891.

It is an arithmetic number, because the mean of its divisors is an integer number (47713778).

Almost surely, 2^143141331 is an apocalyptic number.

143141331 is a deficient number, since it is larger than the sum of its proper divisors (47713781).

143141331 is an equidigital number, since it uses as much as digits as its factorization.

143141331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47713780.

The product of its digits is 432, while the sum is 21.

The square root of 143141331 is about 11964.1686297043. The cubic root of 143141331 is about 523.1043727316.

Adding to 143141331 its reverse (133141341), we get a palindrome (276282672).

The spelling of 143141331 in words is "one hundred forty-three million, one hundred forty-one thousand, three hundred thirty-one".