143409429 has 24 divisors (see below), whose sum is σ = 212921280. Its totient is φ = 92961792.

The previous prime is 143409419. The next prime is 143409457. The reversal of 143409429 is 924904341.

It is not a de Polignac number, because 143409429 - 2⁹ = 143408917 is a prime.

It is a super-2 number, since 2×143409429² = 41132528652212082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 143409393 and 143409402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143409419) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101077 + ... + 102485.

It is an arithmetic number, because the mean of its divisors is an integer number (8871720).

Almost surely, 2^143409429 is an apocalyptic number.

It is an amenable number.

143409429 is a deficient number, since it is larger than the sum of its proper divisors (69511851).

143409429 is a wasteful number, since it uses less digits than its factorization.

143409429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721 (or 1718 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 143409429 is about 11975.3675935230. The cubic root of 143409429 is about 523.4307535877.

The spelling of 143409429 in words is "one hundred forty-three million, four hundred nine thousand, four hundred twenty-nine".