142371081637 has 4 divisors (see below), whose sum is σ = 149864296480. Its totient is φ = 134877866796.

The previous prime is 142371081607. The next prime is 142371081673. The reversal of 142371081637 is 736180173241.

It is a happy number.

142371081637 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142371081637 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142371081593 and 142371081602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142371081607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3746607393 + ... + 3746607430.

It is an arithmetic number, because the mean of its divisors is an integer number (37466074120).

Almost surely, 2^142371081637 is an apocalyptic number.

It is an amenable number.

142371081637 is a deficient number, since it is larger than the sum of its proper divisors (7493214843).

142371081637 is an equidigital number, since it uses as much as digits as its factorization.

142371081637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7493214842.

The product of its (nonzero) digits is 169344, while the sum is 43.

The spelling of 142371081637 in words is "one hundred forty-two billion, three hundred seventy-one million, eighty-one thousand, six hundred thirty-seven".