143240232 has 32 divisors (see below), whose sum is σ = 379166400. Its totient is φ = 44937984.

The previous prime is 143240231. The next prime is 143240257. The reversal of 143240232 is 232042341.

It is a junction number, because it is equal to n+sod(n) for n = 143240199 and 143240208.

It is not an unprimeable number, because it can be changed into a prime (143240231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175132 + ... + 175947.

It is an arithmetic number, because the mean of its divisors is an integer number (11848950).

Almost surely, 2^143240232 is an apocalyptic number.

143240232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

143240232 is an abundant number, since it is smaller than the sum of its proper divisors (235926168).

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

143240232 is a wasteful number, since it uses less digits than its factorization.

143240232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351105 (or 351101 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 143240232 is about 11968.3011325752. The cubic root of 143240232 is about 523.2248216020.

Adding to 143240232 its reverse (232042341), we get a palindrome (375282573).

The spelling of 143240232 in words is "one hundred forty-three million, two hundred forty thousand, two hundred thirty-two".