143434414521 has 20 divisors (see below), whose sum is σ = 215023382992. Its totient is φ = 95285037528.

The previous prime is 143434414463. The next prime is 143434414523. The reversal of 143434414521 is 125414434341.

It is a happy number.

143434414521 is a `hidden beast` number, since 1 + 43 + 43 + 44 + 14 + 521 = 666.

It is not a de Polignac number, because 143434414521 - 2¹⁷ = 143434283449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143434414523) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3105691 + ... + 3151536.

Almost surely, 2^143434414521 is an apocalyptic number.

It is an amenable number.

143434414521 is a deficient number, since it is larger than the sum of its proper divisors (71588968471).

143434414521 is an equidigital number, since it uses as much as digits as its factorization.

143434414521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6257522 (or 6257513 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

Adding to 143434414521 its reverse (125414434341), we get a palindrome (268848848862).

The spelling of 143434414521 in words is "one hundred forty-three billion, four hundred thirty-four million, four hundred fourteen thousand, five hundred twenty-one".