142191747597 has 8 divisors (see below), whose sum is σ = 190796570656. Its totient is φ = 94190711472.

The previous prime is 142191747587. The next prime is 142191747611. The reversal of 142191747597 is 795747191241.

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

It is not a de Polignac number, because 142191747597 - 2¹⁹ = 142191223309 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 (142191747587) 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, 150946183 + ... + 150947124.

It is an arithmetic number, because the mean of its divisors is an integer number (23849571332).

Almost surely, 2^142191747597 is an apocalyptic number.

It is an amenable number.

142191747597 is a deficient number, since it is larger than the sum of its proper divisors (48604823059).

142191747597 is a wasteful number, since it uses less digits than its factorization.

142191747597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 301893467.

The product of its digits is 4445280, while the sum is 57.

The spelling of 142191747597 in words is "one hundred forty-two billion, one hundred ninety-one million, seven hundred forty-seven thousand, five hundred ninety-seven".