142142241 has 8 divisors (see below), whose sum is σ = 193555584. Its totient is φ = 92745200.

The previous prime is 142142233. The next prime is 142142257. The reversal of 142142241 is 142241241.

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

It is a cyclic number.

It is not a de Polignac number, because 142142241 - 2³ = 142142233 is a prime.

It is a super-3 number, since 3×142142241³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (142142291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 503910 + ... + 504191.

It is an arithmetic number, because the mean of its divisors is an integer number (24194448).

Almost surely, 2^142142241 is an apocalyptic number.

It is an amenable number.

142142241 is a deficient number, since it is larger than the sum of its proper divisors (51413343).

142142241 is a wasteful number, since it uses less digits than its factorization.

142142241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1008151.

The product of its digits is 512, while the sum is 21.

The square root of 142142241 is about 11922.3420937331. The cubic root of 142142241 is about 521.8844850894.

Adding to 142142241 its reverse (142241241), we get a palindrome (284383482).

The spelling of 142142241 in words is "one hundred forty-two million, one hundred forty-two thousand, two hundred forty-one".