143530131 has 8 divisors (see below), whose sum is σ = 192119184. Its totient is φ = 95313920.

The previous prime is 143530111. The next prime is 143530169. The reversal of 143530131 is 131035341.

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

It is a cyclic number.

It is not a de Polignac number, because 143530131 - 2⁷ = 143530003 is a prime.

It is a super-2 number, since 2×143530131² = 41201797009754322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143530098 and 143530107.

It is not an unprimeable number, because it can be changed into a prime (143530111) 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 7 ways as a sum of consecutive naturals, for example, 92310 + ... + 93851.

It is an arithmetic number, because the mean of its divisors is an integer number (24014898).

Almost surely, 2^143530131 is an apocalyptic number.

143530131 is a deficient number, since it is larger than the sum of its proper divisors (48589053).

143530131 is a wasteful number, since it uses less digits than its factorization.

143530131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186421.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 143530131 is about 11980.4061283414. The cubic root of 143530131 is about 523.5775626746.

Adding to 143530131 its reverse (131035341), we get a palindrome (274565472).

The spelling of 143530131 in words is "one hundred forty-three million, five hundred thirty thousand, one hundred thirty-one".