142542356561 has 8 divisors (see below), whose sum is σ = 157040365248. Its totient is φ = 128300950000.

The previous prime is 142542356557. The next prime is 142542356573. The reversal of 142542356561 is 165653245241.

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

It is a cyclic number.

It is not a de Polignac number, because 142542356561 - 2² = 142542356557 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142542356501) 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, 64149365 + ... + 64151586.

It is an arithmetic number, because the mean of its divisors is an integer number (19630045656).

Almost surely, 2^142542356561 is an apocalyptic number.

142542356561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

142542356561 is a deficient number, since it is larger than the sum of its proper divisors (14498008687).

142542356561 is a wasteful number, since it uses less digits than its factorization.

142542356561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128301063.

The product of its digits is 864000, while the sum is 44.

The spelling of 142542356561 in words is "one hundred forty-two billion, five hundred forty-two million, three hundred fifty-six thousand, five hundred sixty-one".