143644479 has 8 divisors (see below), whose sum is σ = 208937472. Its totient is φ = 87057240.

The previous prime is 143644477. The next prime is 143644489. The reversal of 143644479 is 974446341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 143644479 - 2¹ = 143644477 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 143644479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143644477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2176399 + ... + 2176464.

It is an arithmetic number, because the mean of its divisors is an integer number (26117184).

Almost surely, 2^143644479 is an apocalyptic number.

143644479 is a deficient number, since it is larger than the sum of its proper divisors (65292993).

143644479 is a wasteful number, since it uses less digits than its factorization.

143644479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4352877.

The product of its digits is 290304, while the sum is 42.

The square root of 143644479 is about 11985.1774705258. The cubic root of 143644479 is about 523.7165675293.

The spelling of 143644479 in words is "one hundred forty-three million, six hundred forty-four thousand, four hundred seventy-nine".