142001278591 has 2 divisors, whose sum is σ = 142001278592. Its totient is φ = 142001278590.

The previous prime is 142001278589. The next prime is 142001278597. The reversal of 142001278591 is 195872100241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142001278591 - 2¹ = 142001278589 is a prime.

Together with 142001278589, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142001278597) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71000639295 + 71000639296.

It is an arithmetic number, because the mean of its divisors is an integer number (71000639296).

Almost surely, 2^142001278591 is an apocalyptic number.

142001278591 is a deficient number, since it is larger than the sum of its proper divisors (1).

142001278591 is an equidigital number, since it uses as much as digits as its factorization.

142001278591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40320, while the sum is 40.

The spelling of 142001278591 in words is "one hundred forty-two billion, one million, two hundred seventy-eight thousand, five hundred ninety-one".