143073302137 has 4 divisors (see below), whose sum is σ = 143202314340. Its totient is φ = 142944289936.

The previous prime is 143073302087. The next prime is 143073302153. The reversal of 143073302137 is 731203370341.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 731203370341 = 129439 ⋅5649019.

It can be written as a sum of positive squares in 2 ways, for example, as 13599991161 + 129473310976 = 116619^2 + 359824^2 .

It is a cyclic number.

It is not a de Polignac number, because 143073302137 - 2¹¹ = 143073300089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (143073302737) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64504438 + ... + 64506655.

It is an arithmetic number, because the mean of its divisors is an integer number (35800578585).

Almost surely, 2^143073302137 is an apocalyptic number.

It is an amenable number.

143073302137 is a deficient number, since it is larger than the sum of its proper divisors (129012203).

143073302137 is a wasteful number, since it uses less digits than its factorization.

143073302137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129012202.

The product of its (nonzero) digits is 31752, while the sum is 34.

Adding to 143073302137 its reverse (731203370341), we get a palindrome (874276672478).

The spelling of 143073302137 in words is "one hundred forty-three billion, seventy-three million, three hundred two thousand, one hundred thirty-seven".