143354985 has 16 divisors (see below), whose sum is σ = 229976064. Its totient is φ = 76253312.

The previous prime is 143354977. The next prime is 143355007. The reversal of 143354985 is 589453341.

It is a cyclic number.

It is not a de Polignac number, because 143354985 - 2³ = 143354977 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6732 + ... + 18221.

It is an arithmetic number, because the mean of its divisors is an integer number (14373504).

Almost surely, 2^143354985 is an apocalyptic number.

143354985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143354985 is a deficient number, since it is larger than the sum of its proper divisors (86621079).

143354985 is a wasteful number, since it uses less digits than its factorization.

143354985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25344.

The product of its digits is 259200, while the sum is 42.

The square root of 143354985 is about 11973.0942116063. The cubic root of 143354985 is about 523.3645067325.

The spelling of 143354985 in words is "one hundred forty-three million, three hundred fifty-four thousand, nine hundred eighty-five".