137512640143 has 4 divisors (see below), whose sum is σ = 143491450608. Its totient is φ = 131533829680.

The previous prime is 137512640141. The next prime is 137512640227. The reversal of 137512640143 is 341046215731.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 137512640143 - 2¹ = 137512640141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (137512640141) 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, 2989405198 + ... + 2989405243.

It is an arithmetic number, because the mean of its divisors is an integer number (35872862652).

Almost surely, 2^137512640143 is an apocalyptic number.

137512640143 is a deficient number, since it is larger than the sum of its proper divisors (5978810465).

137512640143 is an equidigital number, since it uses as much as digits as its factorization.

137512640143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5978810464.

The product of its (nonzero) digits is 60480, while the sum is 37.

Adding to 137512640143 its reverse (341046215731), we get a palindrome (478558855874).

The spelling of 137512640143 in words is "one hundred thirty-seven billion, five hundred twelve million, six hundred forty thousand, one hundred forty-three".