143145320 has 16 divisors (see below), whose sum is σ = 322077060. Its totient is φ = 57258112.

The previous prime is 143145319. The next prime is 143145329. The reversal of 143145320 is 23541341.

It can be written as a sum of positive squares in 2 ways, for example, as 127193284 + 15952036 = 11278^2 + 3994^2 .

It is not an unprimeable number, because it can be changed into a prime (143145329) 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, 1789277 + ... + 1789356.

Almost surely, 2^143145320 is an apocalyptic number.

143145320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143145320 is an abundant number, since it is smaller than the sum of its proper divisors (178931740).

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

143145320 is a wasteful number, since it uses less digits than its factorization.

143145320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3578644 (or 3578640 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 143145320 is about 11964.3353346519. The cubic root of 143145320 is about 523.1092319011.

Adding to 143145320 its reverse (23541341), we get a palindrome (166686661).

The spelling of 143145320 in words is "one hundred forty-three million, one hundred forty-five thousand, three hundred twenty".