143216534 has 8 divisors (see below), whose sum is σ = 227461608. Its totient is φ = 67396000.

The previous prime is 143216533. The next prime is 143216537. The reversal of 143216534 is 435612341.

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

It is a super-2 number, since 2×143216534² = 41021951221946312, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143216497 and 143216506.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143216533) 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, 2106092 + ... + 2106159.

It is an arithmetic number, because the mean of its divisors is an integer number (28432701).

Almost surely, 2^143216534 is an apocalyptic number.

143216534 is a deficient number, since it is larger than the sum of its proper divisors (84245074).

143216534 is a wasteful number, since it uses less digits than its factorization.

143216534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212270.

The product of its digits is 8640, while the sum is 29.

The square root of 143216534 is about 11967.3110597160. The cubic root of 143216534 is about 523.1959654966.

Adding to 143216534 its reverse (435612341), we get a palindrome (578828875).

The spelling of 143216534 in words is "one hundred forty-three million, two hundred sixteen thousand, five hundred thirty-four".