142197612479 has 6 divisors (see below), whose sum is σ = 153977296536. Its totient is φ = 131259334440.

The previous prime is 142197612433. The next prime is 142197612547. The reversal of 142197612479 is 974216791241.

It is not a de Polignac number, because 142197612479 - 2⁸ = 142197612223 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 142197612479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142197612419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420702827 + ... + 420703164.

It is an arithmetic number, because the mean of its divisors is an integer number (25662882756).

Almost surely, 2^142197612479 is an apocalyptic number.

142197612479 is a deficient number, since it is larger than the sum of its proper divisors (11779684057).

142197612479 is an equidigital number, since it uses as much as digits as its factorization.

142197612479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841406017 (or 841406004 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 53.

The spelling of 142197612479 in words is "one hundred forty-two billion, one hundred ninety-seven million, six hundred twelve thousand, four hundred seventy-nine".