143161556 has 12 divisors (see below), whose sum is σ = 265270068. Its totient is φ = 67370112.

The previous prime is 143161537. The next prime is 143161583. The reversal of 143161556 is 655161341.

143161556 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 124099600 + 19061956 = 11140^2 + 4366^2 .

It is a super-2 number, since 2×143161556² = 40990462232682272, which contains 22 as substring.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 1052591 + ... + 1052726.

It is an arithmetic number, because the mean of its divisors is an integer number (22105839).

Almost surely, 2^143161556 is an apocalyptic number.

It is an amenable number.

143161556 is a deficient number, since it is larger than the sum of its proper divisors (122108512).

143161556 is a wasteful number, since it uses less digits than its factorization.

143161556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105338 (or 2105336 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

The square root of 143161556 is about 11965.0138320020. The cubic root of 143161556 is about 523.1290087274.

The spelling of 143161556 in words is "one hundred forty-three million, one hundred sixty-one thousand, five hundred fifty-six".