142617241 has 6 divisors (see below), whose sum is σ = 154431870. Its totient is φ = 131646528.

The previous prime is 142617191. The next prime is 142617247. The reversal of 142617241 is 142716241.

It can be written as a sum of positive squares in 3 ways, for example, as 912025 + 141705216 = 955^2 + 11904^2 .

It is not a de Polignac number, because 142617241 - 2⁷ = 142617113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142617247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 421776 + ... + 422113.

It is an arithmetic number, because the mean of its divisors is an integer number (25738645).

Almost surely, 2^142617241 is an apocalyptic number.

It is an amenable number.

142617241 is a deficient number, since it is larger than the sum of its proper divisors (11814629).

142617241 is an equidigital number, since it uses as much as digits as its factorization.

142617241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843915 (or 843902 counting only the distinct ones).

The product of its digits is 2688, while the sum is 28.

The square root of 142617241 is about 11942.2460617758. The cubic root of 142617241 is about 522.4651698736.

The spelling of 142617241 in words is "one hundred forty-two million, six hundred seventeen thousand, two hundred forty-one".