142210331 has 8 divisors (see below), whose sum is σ = 145837824. Its totient is φ = 138597480.

The previous prime is 142210319. The next prime is 142210333. The reversal of 142210331 is 133012241.

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 142210331 - 2¹⁸ = 141948187 is a prime.

It is a super-2 number, since 2×142210331² = 40447556486259122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142210333) 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, 17546 + ... + 24336.

It is an arithmetic number, because the mean of its divisors is an integer number (18229728).

Almost surely, 2^142210331 is an apocalyptic number.

142210331 is a deficient number, since it is larger than the sum of its proper divisors (3627493).

142210331 is an equidigital number, since it uses as much as digits as its factorization.

142210331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7321.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 142210331 is about 11925.1973149294. The cubic root of 142210331 is about 521.9678040750.

Adding to 142210331 its reverse (133012241), we get a palindrome (275222572).

The spelling of 142210331 in words is "one hundred forty-two million, two hundred ten thousand, three hundred thirty-one".