143488685 has 4 divisors (see below), whose sum is σ = 172186428. Its totient is φ = 114790944.

The previous prime is 143488679. The next prime is 143488699. The reversal of 143488685 is 586884341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 586884341 = 1663 ⋅352907.

It can be written as a sum of positive squares in 2 ways, for example, as 38180041 + 105308644 = 6179^2 + 10262^2 .

It is a cyclic number.

It is not a de Polignac number, because 143488685 - 2⁶ = 143488621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14348864 + ... + 14348873.

It is an arithmetic number, because the mean of its divisors is an integer number (43046607).

Almost surely, 2^143488685 is an apocalyptic number.

It is an amenable number.

143488685 is a deficient number, since it is larger than the sum of its proper divisors (28697743).

143488685 is an equidigital number, since it uses as much as digits as its factorization.

143488685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28697742.

The product of its digits is 737280, while the sum is 47.

The square root of 143488685 is about 11978.6762624257. The cubic root of 143488685 is about 523.5271614462.

The spelling of 143488685 in words is "one hundred forty-three million, four hundred eighty-eight thousand, six hundred eighty-five".