143131264 has 32 divisors (see below), whose sum is σ = 286783200. Its totient is φ = 71154432.

The previous prime is 143131253. The next prime is 143131271. The reversal of 143131264 is 462131341.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19789 + ... + 26035.

It is an arithmetic number, because the mean of its divisors is an integer number (8961975).

Almost surely, 2^143131264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143131264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143391600).

143131264 is an abundant number, since it is smaller than the sum of its proper divisors (143651936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

143131264 is an equidigital number, since it uses as much as digits as its factorization.

143131264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6440 (or 6428 counting only the distinct ones).

The product of its digits is 1728, while the sum is 25.

The square root of 143131264 is about 11963.7479077420. The cubic root of 143131264 is about 523.0921092920.

The spelling of 143131264 in words is "one hundred forty-three million, one hundred thirty-one thousand, two hundred sixty-four".