143231430 has 32 divisors (see below), whose sum is σ = 344208384. Its totient is φ = 38144736.

The previous prime is 143231401. The next prime is 143231447. The reversal of 143231430 is 34132341.

It is a junction number, because it is equal to n+sod(n) for n = 143231397 and 143231406.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 23787 + ... + 29193.

It is an arithmetic number, because the mean of its divisors is an integer number (10756512).

Almost surely, 2^143231430 is an apocalyptic number.

143231430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

143231430 is an abundant number, since it is smaller than the sum of its proper divisors (200976954).

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

143231430 is a wasteful number, since it uses less digits than its factorization.

143231430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6300.

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

The square root of 143231430 is about 11967.9334055634. The cubic root of 143231430 is about 523.2141041307.

Adding to 143231430 its reverse (34132341), we get a palindrome (177363771).

It can be divided in two parts, 14323 and 1430, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 143231430 in words is "one hundred forty-three million, two hundred thirty-one thousand, four hundred thirty".