142229681233 has 4 divisors (see below), whose sum is σ = 142231323060. Its totient is φ = 142228039408.

The previous prime is 142229681197. The next prime is 142229681287. The reversal of 142229681233 is 332186922241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332186922241 = 919 ⋅361465639.

It can be written as a sum of positive squares in 2 ways, for example, as 105864335424 + 36365345809 = 325368^2 + 190697^2 .

It is a cyclic number.

It is not a de Polignac number, because 142229681233 - 2¹⁷ = 142229550161 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142229681233.

It is not an unprimeable number, because it can be changed into a prime (142229681333) 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, 683278 + ... + 866791.

It is an arithmetic number, because the mean of its divisors is an integer number (35557830765).

Almost surely, 2^142229681233 is an apocalyptic number.

It is an amenable number.

142229681233 is a deficient number, since it is larger than the sum of its proper divisors (1641827).

142229681233 is an equidigital number, since it uses as much as digits as its factorization.

142229681233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641826.

The product of its digits is 248832, while the sum is 43.

The spelling of 142229681233 in words is "one hundred forty-two billion, two hundred twenty-nine million, six hundred eighty-one thousand, two hundred thirty-three".