142267331 has 8 divisors (see below), whose sum is σ = 148295760. Its totient is φ = 136353888.

The previous prime is 142267327. The next prime is 142267343. The reversal of 142267331 is 133762241.

It is a happy number.

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 142267331 - 2² = 142267327 is a prime.

It is a super-2 number, since 2×142267331² = 40479986939727122, 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 = 142267294 and 142267303.

It is not an unprimeable number, because it can be changed into a prime (142267831) 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, 26216 + ... + 31173.

It is an arithmetic number, because the mean of its divisors is an integer number (18536970).

Almost surely, 2^142267331 is an apocalyptic number.

142267331 is a deficient number, since it is larger than the sum of its proper divisors (6028429).

142267331 is an equidigital number, since it uses as much as digits as its factorization.

142267331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57493.

The product of its digits is 6048, while the sum is 29.

The square root of 142267331 is about 11927.5869730637. The cubic root of 142267331 is about 522.0375322269.

The spelling of 142267331 in words is "one hundred forty-two million, two hundred sixty-seven thousand, three hundred thirty-one".