143975141961 has 32 divisors (see below), whose sum is σ = 225833963520. Its totient is φ = 79865424576.

The previous prime is 143975141957. The next prime is 143975141993. The reversal of 143975141961 is 169141579341.

It is not a de Polignac number, because 143975141961 - 2² = 143975141957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (143975141951) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130060 + ... + 552146.

It is an arithmetic number, because the mean of its divisors is an integer number (7057311360).

Almost surely, 2^143975141961 is an apocalyptic number.

It is an amenable number.

143975141961 is a deficient number, since it is larger than the sum of its proper divisors (81858821559).

143975141961 is a wasteful number, since it uses less digits than its factorization.

143975141961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422573.

The product of its digits is 816480, while the sum is 51.

The spelling of 143975141961 in words is "one hundred forty-three billion, nine hundred seventy-five million, one hundred forty-one thousand, nine hundred sixty-one".