143530040 has 16 divisors (see below), whose sum is σ = 322942680. Its totient is φ = 57412000.

The previous prime is 143530039. The next prime is 143530069. The reversal of 143530040 is 40035341.

143530040 is nontrivially palindromic in base 7.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 143529994 and 143530021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1794086 + ... + 1794165.

Almost surely, 2^143530040 is an apocalyptic number.

143530040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143530040 is an abundant number, since it is smaller than the sum of its proper divisors (179412640).

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

143530040 is a wasteful number, since it uses less digits than its factorization.

143530040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3588262 (or 3588258 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 143530040 is about 11980.4023304729. The cubic root of 143530040 is about 523.5774520229.

Adding to 143530040 its reverse (40035341), we get a palindrome (183565381).

The spelling of 143530040 in words is "one hundred forty-three million, five hundred thirty thousand, forty".