142637819317 has 8 divisors (see below), whose sum is σ = 163029955712. Its totient is φ = 122249509200.

The previous prime is 142637819281. The next prime is 142637819321. The reversal of 142637819317 is 713918736241.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 142637819317 - 2⁷ = 142637819189 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 (142637819347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 876234 + ... + 1026187.

It is an arithmetic number, because the mean of its divisors is an integer number (20378744464).

Almost surely, 2^142637819317 is an apocalyptic number.

It is an amenable number.

142637819317 is a deficient number, since it is larger than the sum of its proper divisors (20392136395).

142637819317 is a wasteful number, since it uses less digits than its factorization.

142637819317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1913139.

The product of its digits is 1524096, while the sum is 52.

The spelling of 142637819317 in words is "one hundred forty-two billion, six hundred thirty-seven million, eight hundred nineteen thousand, three hundred seventeen".