143233140 has 48 divisors (see below), whose sum is σ = 404232192. Its totient is φ = 37892736.

The previous prime is 143233133. The next prime is 143233147. The reversal of 143233140 is 41332341.

It is an interprime number because it is at equal distance from previous prime (143233133) and next prime (143233147).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143233147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1779 + ... + 17018.

It is an arithmetic number, because the mean of its divisors is an integer number (8421504).

Almost surely, 2^143233140 is an apocalyptic number.

143233140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143233140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202116096).

143233140 is an abundant number, since it is smaller than the sum of its proper divisors (260999052).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143233140 is a wasteful number, since it uses less digits than its factorization.

143233140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18936 (or 18934 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 143233140 is about 11968.0048462557. The cubic root of 143233140 is about 523.2161862914.

Adding to 143233140 its reverse (41332341), we get a palindrome (184565481).

The spelling of 143233140 in words is "one hundred forty-three million, two hundred thirty-three thousand, one hundred forty".