143130440 has 16 divisors (see below), whose sum is σ = 322043580. Its totient is φ = 57252160.

The previous prime is 143130437. The next prime is 143130473. The reversal of 143130440 is 44031341.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 142898116 + 232324 = 11954^2 + 482^2 .

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

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, 1789091 + ... + 1789170.

Almost surely, 2^143130440 is an apocalyptic number.

143130440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

143130440 is an abundant number, since it is smaller than the sum of its proper divisors (178913140).

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

143130440 is a wasteful number, since it uses less digits than its factorization.

143130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3578272 (or 3578268 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 143130440 is about 11963.7134703235. The cubic root of 143130440 is about 523.0911054845.

Adding to 143130440 its reverse (44031341), we get a palindrome (187161781).

Subtracting from 143130440 its reverse (44031341), we obtain a palindrome (99099099).

The spelling of 143130440 in words is "one hundred forty-three million, one hundred thirty thousand, four hundred forty".