142316231 has 8 divisors (see below), whose sum is σ = 151593120. Its totient is φ = 133139968.

The previous prime is 142316221. The next prime is 142316263. The reversal of 142316231 is 132613241.

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 142316231 - 2¹⁰ = 142315207 is a prime.

It is a super-2 number, since 2×142316231² = 40507819212090722, 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 = 142316197 and 142316206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142316221) 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, 22226 + ... + 27903.

It is an arithmetic number, because the mean of its divisors is an integer number (18949140).

Almost surely, 2^142316231 is an apocalyptic number.

142316231 is a deficient number, since it is larger than the sum of its proper divisors (9276889).

142316231 is a wasteful number, since it uses less digits than its factorization.

142316231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50313.

The product of its digits is 864, while the sum is 23.

The square root of 142316231 is about 11929.6366667221. The cubic root of 142316231 is about 522.0973368003.

Adding to 142316231 its reverse (132613241), we get a palindrome (274929472).

The spelling of 142316231 in words is "one hundred forty-two million, three hundred sixteen thousand, two hundred thirty-one".