143215132 has 12 divisors (see below), whose sum is σ = 256739616. Its totient is φ = 69860960.

The previous prime is 143215097. The next prime is 143215139. The reversal of 143215132 is 231512341.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143215139) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 436468 + ... + 436795.

It is an arithmetic number, because the mean of its divisors is an integer number (21394968).

Almost surely, 2^143215132 is an apocalyptic number.

It is an amenable number.

143215132 is a deficient number, since it is larger than the sum of its proper divisors (113524484).

143215132 is a wasteful number, since it uses less digits than its factorization.

143215132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873308 (or 873306 counting only the distinct ones).

The product of its digits is 720, while the sum is 22.

The square root of 143215132 is about 11967.2524833397. The cubic root of 143215132 is about 523.1942582377.

Adding to 143215132 its reverse (231512341), we get a palindrome (374727473).

The spelling of 143215132 in words is "one hundred forty-three million, two hundred fifteen thousand, one hundred thirty-two".