142141231 has 8 divisors (see below), whose sum is σ = 148028544. Its totient is φ = 136335360.

The previous prime is 142141229. The next prime is 142141247. The reversal of 142141231 is 132141241.

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 142141231 - 2¹ = 142141229 is a prime.

It is a super-2 number, since 2×142141231² = 40408259100390722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142141199 and 142141208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142141031) 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, 16786 + ... + 23791.

It is an arithmetic number, because the mean of its divisors is an integer number (18503568).

Almost surely, 2^142141231 is an apocalyptic number.

142141231 is a deficient number, since it is larger than the sum of its proper divisors (5887313).

142141231 is a wasteful number, since it uses less digits than its factorization.

142141231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40721.

The product of its digits is 192, while the sum is 19.

The square root of 142141231 is about 11922.2997362086. The cubic root of 142141231 is about 521.8832489929.

Adding to 142141231 its reverse (132141241), we get a palindrome (274282472).

The spelling of 142141231 in words is "one hundred forty-two million, one hundred forty-one thousand, two hundred thirty-one".