142663247281 has 8 divisors (see below), whose sum is σ = 144891505728. Its totient is φ = 140441070000.

The previous prime is 142663247239. The next prime is 142663247329. The reversal of 142663247281 is 182742366241.

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 142663247281 - 2¹⁵ = 142663214513 is a prime.

It is a super-2 number, since 2×142663247281² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142663247381) 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, 1472995 + ... + 1566856.

It is an arithmetic number, because the mean of its divisors is an integer number (18111438216).

Almost surely, 2^142663247281 is an apocalyptic number.

It is an amenable number.

142663247281 is a deficient number, since it is larger than the sum of its proper divisors (2228258447).

142663247281 is an equidigital number, since it uses as much as digits as its factorization.

142663247281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040583.

The product of its digits is 774144, while the sum is 46.

The spelling of 142663247281 in words is "one hundred forty-two billion, six hundred sixty-three million, two hundred forty-seven thousand, two hundred eighty-one".