143374536 has 80 divisors (see below), whose sum is σ = 405899340. Its totient is φ = 47278080.

The previous prime is 143374531. The next prime is 143374537. The reversal of 143374536 is 635473341.

It can be written as a sum of positive squares in 2 ways, for example, as 143280900 + 93636 = 11970^2 + 306^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 143374536.

It is not an unprimeable number, because it can be changed into a prime (143374531) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 61716 + ... + 63996.

Almost surely, 2^143374536 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 143374536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202949670).

143374536 is an abundant number, since it is smaller than the sum of its proper divisors (262524804).

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

143374536 is a wasteful number, since it uses less digits than its factorization.

143374536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396 (or 2383 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 143374536 is about 11973.9106393859. The cubic root of 143374536 is about 523.3882981022.

The spelling of 143374536 in words is "one hundred forty-three million, three hundred seventy-four thousand, five hundred thirty-six".