143121434 has 16 divisors (see below), whose sum is σ = 218716200. Its totient is φ = 70228224.

The previous prime is 143121431. The next prime is 143121481. The reversal of 143121434 is 434121341.

It can be written as a sum of positive squares in 4 ways, for example, as 76650025 + 66471409 = 8755^2 + 8153^2 .

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (143121431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21452 + ... + 27320.

Almost surely, 2^143121434 is an apocalyptic number.

143121434 is a deficient number, since it is larger than the sum of its proper divisors (75594766).

143121434 is a wasteful number, since it uses less digits than its factorization.

143121434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097.

The product of its digits is 1152, while the sum is 23.

The square root of 143121434 is about 11963.3370762509. The cubic root of 143121434 is about 523.0801340068.

Adding to 143121434 its reverse (434121341), we get a palindrome (577242775).

The spelling of 143121434 in words is "one hundred forty-three million, one hundred twenty-one thousand, four hundred thirty-four".