142123337 has 4 divisors (see below), whose sum is σ = 142629396. Its totient is φ = 141617280.

The previous prime is 142123309. The next prime is 142123339. The reversal of 142123337 is 733321241.

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

It can be written as a sum of positive squares in 2 ways, for example, as 127599616 + 14523721 = 11296^2 + 3811^2 .

It is a cyclic number.

It is not a de Polignac number, because 142123337 - 2⁸ = 142123081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142123339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 252608 + ... + 253169.

It is an arithmetic number, because the mean of its divisors is an integer number (35657349).

Almost surely, 2^142123337 is an apocalyptic number.

It is an amenable number.

142123337 is a deficient number, since it is larger than the sum of its proper divisors (506059).

142123337 is an equidigital number, since it uses as much as digits as its factorization.

142123337 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 506058.

The product of its digits is 3024, while the sum is 26.

The square root of 142123337 is about 11921.5492701242. The cubic root of 142123337 is about 521.8613483084.

Adding to 142123337 its reverse (733321241), we get a palindrome (875444578).

The spelling of 142123337 in words is "one hundred forty-two million, one hundred twenty-three thousand, three hundred thirty-seven".