142234241 has 4 divisors (see below), whose sum is σ = 147138900. Its totient is φ = 137329584.

The previous prime is 142234217. The next prime is 142234243. The reversal of 142234241 is 142432241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142432241 = 7 ⋅20347463.

It can be written as a sum of positive squares in 2 ways, for example, as 61952641 + 80281600 = 7871^2 + 8960^2 .

It is a cyclic number.

It is not a de Polignac number, because 142234241 - 2²⁶ = 75125377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142234243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2452286 + ... + 2452343.

It is an arithmetic number, because the mean of its divisors is an integer number (36784725).

Almost surely, 2^142234241 is an apocalyptic number.

It is an amenable number.

142234241 is a deficient number, since it is larger than the sum of its proper divisors (4904659).

142234241 is an equidigital number, since it uses as much as digits as its factorization.

142234241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4904658.

The product of its digits is 1536, while the sum is 23.

The square root of 142234241 is about 11926.1997719307. The cubic root of 142234241 is about 521.9970554680.

Adding to 142234241 its reverse (142432241), we get a palindrome (284666482).

The spelling of 142234241 in words is "one hundred forty-two million, two hundred thirty-four thousand, two hundred forty-one".