142406063191 has 4 divisors (see below), whose sum is σ = 162749786512. Its totient is φ = 122062339872.

The previous prime is 142406063171. The next prime is 142406063237. The reversal of 142406063191 is 191360604241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142406063191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142406063191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142406063171) 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, 10171861650 + ... + 10171861663.

It is an arithmetic number, because the mean of its divisors is an integer number (40687446628).

Almost surely, 2^142406063191 is an apocalyptic number.

142406063191 is a deficient number, since it is larger than the sum of its proper divisors (20343723321).

142406063191 is an equidigital number, since it uses as much as digits as its factorization.

142406063191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20343723320.

The product of its (nonzero) digits is 31104, while the sum is 37.

The spelling of 142406063191 in words is "one hundred forty-two billion, four hundred six million, sixty-three thousand, one hundred ninety-one".