143429385 has 32 divisors (see below), whose sum is σ = 263531520. Its totient is φ = 65880000.

The previous prime is 143429371. The next prime is 143429399. The reversal of 143429385 is 583924341.

It is an interprime number because it is at equal distance from previous prime (143429371) and next prime (143429399).

It is not a de Polignac number, because 143429385 - 2⁴ = 143429369 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 19741 + ... + 26010.

It is an arithmetic number, because the mean of its divisors is an integer number (8235360).

Almost surely, 2^143429385 is an apocalyptic number.

143429385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143429385 is a deficient number, since it is larger than the sum of its proper divisors (120102135).

143429385 is a wasteful number, since it uses less digits than its factorization.

143429385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45789.

The product of its digits is 103680, while the sum is 39.

The square root of 143429385 is about 11976.2007748701. The cubic root of 143429385 is about 523.4550316278.

The spelling of 143429385 in words is "one hundred forty-three million, four hundred twenty-nine thousand, three hundred eighty-five".