142233317 has 2 divisors, whose sum is σ = 142233318. Its totient is φ = 142233316.

The previous prime is 142233277. The next prime is 142233323. The reversal of 142233317 is 713332241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92756161 + 49477156 = 9631^2 + 7034^2 .

It is a cyclic number.

It is not a de Polignac number, because 142233317 - 2²⁶ = 75124453 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142233347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71116658 + 71116659.

It is an arithmetic number, because the mean of its divisors is an integer number (71116659).

Almost surely, 2^142233317 is an apocalyptic number.

It is an amenable number.

142233317 is a deficient number, since it is larger than the sum of its proper divisors (1).

142233317 is an equidigital number, since it uses as much as digits as its factorization.

142233317 is an odious number, because the sum of its binary digits is odd.

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

The square root of 142233317 is about 11926.1610336269. The cubic root of 142233317 is about 521.9959251112.

Adding to 142233317 its reverse (713332241), we get a palindrome (855565558).

The spelling of 142233317 in words is "one hundred forty-two million, two hundred thirty-three thousand, three hundred seventeen".