143172872 has 16 divisors (see below), whose sum is σ = 269408700. Its totient is φ = 71330560.

The previous prime is 143172871. The next prime is 143172877. The reversal of 143172872 is 278271341.

It can be written as a sum of positive squares in 2 ways, for example, as 141467236 + 1705636 = 11894^2 + 1306^2 .

It is not an unprimeable number, because it can be changed into a prime (143172871) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29597 + ... + 34092.

Almost surely, 2^143172872 is an apocalyptic number.

It is an amenable number.

143172872 is a deficient number, since it is larger than the sum of its proper divisors (126235828).

143172872 is a wasteful number, since it uses less digits than its factorization.

143172872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63976 (or 63972 counting only the distinct ones).

The product of its digits is 18816, while the sum is 35.

The square root of 143172872 is about 11965.4867013423. The cubic root of 143172872 is about 523.1427916918.

The spelling of 143172872 in words is "one hundred forty-three million, one hundred seventy-two thousand, eight hundred seventy-two".