143225040 has 240 divisors, whose sum is σ = 544518720. Its totient is φ = 30965760.

The previous prime is 143224987. The next prime is 143225041. The reversal of 143225040 is 40522341.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 143224998 and 143225016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143225041) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223120 + ... + 223760.

It is an arithmetic number, because the mean of its divisors is an integer number (2268828).

Almost surely, 2^143225040 is an apocalyptic number.

143225040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 143225040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (272259360).

143225040 is an abundant number, since it is smaller than the sum of its proper divisors (401293680).

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

143225040 is a wasteful number, since it uses less digits than its factorization.

143225040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690 (or 677 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 143225040 is about 11967.6664392019. Note that the first 3 decimals coincide. The cubic root of 143225040 is about 523.2063232783.

Adding to 143225040 its reverse (40522341), we get a palindrome (183747381).

The spelling of 143225040 in words is "one hundred forty-three million, two hundred twenty-five thousand, forty".