143302431 has 8 divisors (see below), whose sum is σ = 193687600. Its totient is φ = 94226112.

The previous prime is 143302399. The next prime is 143302433. The reversal of 143302431 is 134203341.

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

It is not a de Polignac number, because 143302431 - 2⁵ = 143302399 is a prime.

It is a super-2 number, since 2×143302431² = 41071173461019522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 143302398 and 143302407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143302433) 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, 326956 + ... + 327393.

It is an arithmetic number, because the mean of its divisors is an integer number (24210950).

Almost surely, 2^143302431 is an apocalyptic number.

143302431 is a deficient number, since it is larger than the sum of its proper divisors (50385169).

143302431 is an equidigital number, since it uses as much as digits as its factorization.

143302431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654425.

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

The square root of 143302431 is about 11970.8993396486. The cubic root of 143302431 is about 523.3005436968.

Adding to 143302431 its reverse (134203341), we get a palindrome (277505772).

It can be divided in two parts, 14330 and 2431, that added together give a palindrome (16761).

The spelling of 143302431 in words is "one hundred forty-three million, three hundred two thousand, four hundred thirty-one".