143441540 has 48 divisors (see below), whose sum is σ = 339958080. Its totient is φ = 50359680.

The previous prime is 143441539. The next prime is 143441587. The reversal of 143441540 is 45144341.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4862 + ... + 17621.

It is an arithmetic number, because the mean of its divisors is an integer number (7082460).

Almost surely, 2^143441540 is an apocalyptic number.

143441540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143441540 is an abundant number, since it is smaller than the sum of its proper divisors (196516540).

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

143441540 is a wasteful number, since it uses less digits than its factorization.

143441540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22532 (or 22530 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 143441540 is about 11976.7082288916. The cubic root of 143441540 is about 523.4698180358.

Adding to 143441540 its reverse (45144341), we get a palindrome (188585881).

The spelling of 143441540 in words is "one hundred forty-three million, four hundred forty-one thousand, five hundred forty".