143005140 has 36 divisors (see below), whose sum is σ = 433782804. Its totient is φ = 38134656.

The previous prime is 143005123. The next prime is 143005151. The reversal of 143005140 is 41500341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 103917636 + 39087504 = 10194^2 + 6252^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 397057 + ... + 397416.

Almost surely, 2^143005140 is an apocalyptic number.

143005140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143005140 is an abundant number, since it is smaller than the sum of its proper divisors (290777664).

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

143005140 is a wasteful number, since it uses less digits than its factorization.

143005140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 794488 (or 794483 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 143005140 is about 11958.4756553668. The cubic root of 143005140 is about 522.9384185347.

Adding to 143005140 its reverse (41500341), we get a palindrome (184505481).

The spelling of 143005140 in words is "one hundred forty-three million, five thousand, one hundred forty".