142232243 has 4 divisors (see below), whose sum is σ = 142454088. Its totient is φ = 142010400.

The previous prime is 142232221. The next prime is 142232317. The reversal of 142232243 is 342232241.

142232243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142232243 - 2¹² = 142228147 is a prime.

It is a super-2 number, since 2×142232243² = 40460021897622098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142232143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109958 + ... + 111243.

It is an arithmetic number, because the mean of its divisors is an integer number (35613522).

Almost surely, 2^142232243 is an apocalyptic number.

142232243 is a deficient number, since it is larger than the sum of its proper divisors (221845).

142232243 is an equidigital number, since it uses as much as digits as its factorization.

142232243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221844.

The product of its digits is 2304, while the sum is 23.

The square root of 142232243 is about 11926.1160064792. The cubic root of 142232243 is about 521.9946112488.

Adding to 142232243 its reverse (342232241), we get a palindrome (484464484).

The spelling of 142232243 in words is "one hundred forty-two million, two hundred thirty-two thousand, two hundred forty-three".