142334231 has 8 divisors (see below), whose sum is σ = 153380640. Its totient is φ = 131301792.

The previous prime is 142334209. The next prime is 142334249. The reversal of 142334231 is 132433241.

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 142334231 - 2¹⁸ = 142072087 is a prime.

It is a super-2 number, since 2×142334231² = 40518066628722722, 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 = 142334197 and 142334206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142334201) 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, 28766 + ... + 33348.

It is an arithmetic number, because the mean of its divisors is an integer number (19172580).

Almost surely, 2^142334231 is an apocalyptic number.

142334231 is a deficient number, since it is larger than the sum of its proper divisors (11046409).

142334231 is a wasteful number, since it uses less digits than its factorization.

142334231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6985.

The product of its digits is 1728, while the sum is 23.

The square root of 142334231 is about 11930.3910665158. The cubic root of 142334231 is about 522.1193473042.

Adding to 142334231 its reverse (132433241), we get a palindrome (274767472).

The spelling of 142334231 in words is "one hundred forty-two million, three hundred thirty-four thousand, two hundred thirty-one".