143440164 has 72 divisors (see below), whose sum is σ = 420271488. Its totient is φ = 40400640.

The previous prime is 143440127. The next prime is 143440183. The reversal of 143440164 is 461044341.

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 23 ways as a sum of consecutive naturals, for example, 13884 + ... + 21900.

It is an arithmetic number, because the mean of its divisors is an integer number (5837104).

Almost surely, 2^143440164 is an apocalyptic number.

143440164 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143440164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210135744).

143440164 is an abundant number, since it is smaller than the sum of its proper divisors (276831324).

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

143440164 is a wasteful number, since it uses less digits than its factorization.

143440164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8105 (or 8100 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 143440164 is about 11976.6507839212. The cubic root of 143440164 is about 523.4681441906.

The spelling of 143440164 in words is "one hundred forty-three million, four hundred forty thousand, one hundred sixty-four".