142666241 has 8 divisors (see below), whose sum is σ = 143519040. Its totient is φ = 141816688.

The previous prime is 142666219. The next prime is 142666259.

142666241 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142666241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142666198 and 142666207.

It is not an unprimeable number, because it can be changed into a prime (142666201) 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, 210395 + ... + 211071.

It is an arithmetic number, because the mean of its divisors is an integer number (17939880).

Almost surely, 2^142666241 is an apocalyptic number.

It is an amenable number.

142666241 is a deficient number, since it is larger than the sum of its proper divisors (852799).

142666241 is an equidigital number, since it uses as much as digits as its factorization.

142666241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1623.

The product of its digits is 13824, while the sum is 32.

The square root of 142666241 is about 11944.2974259686. The cubic root of 142666241 is about 522.5249986895.

The spelling of 142666241 in words is "one hundred forty-two million, six hundred sixty-six thousand, two hundred forty-one".