142512233 has 2 divisors, whose sum is σ = 142512234. Its totient is φ = 142512232.

The previous prime is 142512221. The next prime is 142512247. The reversal of 142512233 is 332215241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 93470224 + 49042009 = 9668^2 + 7003^2 .

It is a cyclic number.

It is not a de Polignac number, because 142512233 - 2¹⁰ = 142511209 is a prime.

It is equal to p_8046041 and since 142512233 and 8046041 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 142512199 and 142512208.

It is not a weakly prime, because it can be changed into another prime (142512203) 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, 71256116 + 71256117.

It is an arithmetic number, because the mean of its divisors is an integer number (71256117).

Almost surely, 2^142512233 is an apocalyptic number.

It is an amenable number.

142512233 is a deficient number, since it is larger than the sum of its proper divisors (1).

142512233 is an equidigital number, since it uses as much as digits as its factorization.

142512233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 23.

The square root of 142512233 is about 11937.8487593033. The cubic root of 142512233 is about 522.3369093334.

Adding to 142512233 its reverse (332215241), we get a palindrome (474727474).

The spelling of 142512233 in words is "one hundred forty-two million, five hundred twelve thousand, two hundred thirty-three".