143486874 has 12 divisors (see below), whose sum is σ = 310888266. Its totient is φ = 47828952.

The previous prime is 143486873. The next prime is 143486881. The reversal of 143486874 is 478684341.

It can be written as a sum of positive squares in only one way, i.e., 104960025 + 38526849 = 10245^2 + 6207^2 .

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143486873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3985729 + ... + 3985764.

Almost surely, 2^143486874 is an apocalyptic number.

143486874 is an abundant number, since it is smaller than the sum of its proper divisors (167401392).

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

143486874 is a wasteful number, since it uses less digits than its factorization.

143486874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7971501 (or 7971498 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 143486874 is about 11978.6006695273. The cubic root of 143486874 is about 523.5249589225.

The spelling of 143486874 in words is "one hundred forty-three million, four hundred eighty-six thousand, eight hundred seventy-four".