142751068481 has 4 divisors (see below), whose sum is σ = 163144078272. Its totient is φ = 122358058692.

The previous prime is 142751068469. The next prime is 142751068483. The reversal of 142751068481 is 184860157241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 184860157241 = 61 ⋅3030494381.

It is a cyclic number.

It is not a de Polignac number, because 142751068481 - 2⁶ = 142751068417 is a prime.

It is a super-2 number, since 2×142751068481² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142751068483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10196504885 + ... + 10196504898.

It is an arithmetic number, because the mean of its divisors is an integer number (40786019568).

Almost surely, 2^142751068481 is an apocalyptic number.

It is an amenable number.

142751068481 is a deficient number, since it is larger than the sum of its proper divisors (20393009791).

142751068481 is an equidigital number, since it uses as much as digits as its factorization.

142751068481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20393009790.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 142751068481 in words is "one hundred forty-two billion, seven hundred fifty-one million, sixty-eight thousand, four hundred eighty-one".