143121464425 has 12 divisors (see below), whose sum is σ = 181799168796. Its totient is φ = 111704556800.

The previous prime is 143121464413. The next prime is 143121464429. The reversal of 143121464425 is 524464121341.

It can be written as a sum of positive squares in 6 ways, for example, as 39229348096 + 103892116329 = 198064^2 + 322323^2 .

It is not a de Polignac number, because 143121464425 - 2²⁹ = 142584593513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143121464429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 69814324 + ... + 69816373.

It is an arithmetic number, because the mean of its divisors is an integer number (15149930733).

Almost surely, 2^143121464425 is an apocalyptic number.

It is an amenable number.

143121464425 is a deficient number, since it is larger than the sum of its proper divisors (38677704371).

143121464425 is a wasteful number, since it uses less digits than its factorization.

143121464425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139630748 (or 139630743 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

Adding to 143121464425 its reverse (524464121341), we get a palindrome (667585585766).

The spelling of 143121464425 in words is "one hundred forty-three billion, one hundred twenty-one million, four hundred sixty-four thousand, four hundred twenty-five".