142232633 has 2 divisors, whose sum is σ = 142232634. Its totient is φ = 142232632.

The previous prime is 142232611. The next prime is 142232647. The reversal of 142232633 is 336232241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109662784 + 32569849 = 10472^2 + 5707^2 .

It is an emirp because it is prime and its reverse (336232241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142232633 is a prime.

It is a super-2 number, since 2×142232633² = 40460243780225378, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142232833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71116316 + 71116317.

It is an arithmetic number, because the mean of its divisors is an integer number (71116317).

Almost surely, 2^142232633 is an apocalyptic number.

It is an amenable number.

142232633 is a deficient number, since it is larger than the sum of its proper divisors (1).

142232633 is an equidigital number, since it uses as much as digits as its factorization.

142232633 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 26.

The square root of 142232633 is about 11926.1323571391. The cubic root of 142232633 is about 521.9950883504.

Adding to 142232633 its reverse (336232241), we get a palindrome (478464874).

The spelling of 142232633 in words is "one hundred forty-two million, two hundred thirty-two thousand, six hundred thirty-three".