142338241 has 4 divisors (see below), whose sum is σ = 143245012. Its totient is φ = 141431472.

The previous prime is 142338239. The next prime is 142338257. The reversal of 142338241 is 142833241.

142338241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142833241 = 19 ⋅7517539.

It can be written as a sum of positive squares in 2 ways, for example, as 65950641 + 76387600 = 8121^2 + 8740^2 .

It is a cyclic number.

It is not a de Polignac number, because 142338241 - 2¹ = 142338239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142338211) 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, 453150 + ... + 453463.

It is an arithmetic number, because the mean of its divisors is an integer number (35811253).

Almost surely, 2^142338241 is an apocalyptic number.

It is an amenable number.

142338241 is a deficient number, since it is larger than the sum of its proper divisors (906771).

142338241 is an equidigital number, since it uses as much as digits as its factorization.

142338241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906770.

The product of its digits is 4608, while the sum is 28.

The square root of 142338241 is about 11930.5591235281. The cubic root of 142338241 is about 522.1242505026.

The spelling of 142338241 in words is "one hundred forty-two million, three hundred thirty-eight thousand, two hundred forty-one".