142220042497 has 24 divisors (see below), whose sum is σ = 157973072256. Its totient is φ = 127919203776.

The previous prime is 142220042491. The next prime is 142220042509. The reversal of 142220042497 is 794240022241.

It is not a de Polignac number, because 142220042497 - 2³¹ = 140072558849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142220042491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1763623 + ... + 1842499.

It is an arithmetic number, because the mean of its divisors is an integer number (6582211344).

Almost surely, 2^142220042497 is an apocalyptic number.

It is an amenable number.

142220042497 is a deficient number, since it is larger than the sum of its proper divisors (15753029759).

142220042497 is a wasteful number, since it uses less digits than its factorization.

142220042497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79177 (or 79164 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 142220042497 in words is "one hundred forty-two billion, two hundred twenty million, forty-two thousand, four hundred ninety-seven".