143915040 has 144 divisors (see below), whose sum is σ = 495331200. Its totient is φ = 38048256.

The previous prime is 143915039. The next prime is 143915059. The reversal of 143915040 is 40519341.

It is a tau number, because it is divible by the number of its divisors (144).

It is a junction number, because it is equal to n+sod(n) for n = 143914995 and 143915013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199801 + ... + 200519.

It is an arithmetic number, because the mean of its divisors is an integer number (3439800).

Almost surely, 2^143915040 is an apocalyptic number.

143915040 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 143915040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247665600).

143915040 is an abundant number, since it is smaller than the sum of its proper divisors (351416160).

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

143915040 is a wasteful number, since it uses less digits than its factorization.

143915040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879 (or 868 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 143915040 is about 11996.4594776959. The cubic root of 143915040 is about 524.0451760674.

The spelling of 143915040 in words is "one hundred forty-three million, nine hundred fifteen thousand, forty".