142044317 has 2 divisors, whose sum is σ = 142044318. Its totient is φ = 142044316.

The previous prime is 142044311. The next prime is 142044373. The reversal of 142044317 is 713440241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73170916 + 68873401 = 8554^2 + 8299^2 .

It is a cyclic number.

It is not a de Polignac number, because 142044317 - 2¹² = 142040221 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 (142044311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71022158 + 71022159.

It is an arithmetic number, because the mean of its divisors is an integer number (71022159).

Almost surely, 2^142044317 is an apocalyptic number.

It is an amenable number.

142044317 is a deficient number, since it is larger than the sum of its proper divisors (1).

142044317 is an equidigital number, since it uses as much as digits as its factorization.

142044317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 142044317 is about 11918.2346427648. The cubic root of 142044317 is about 521.7646127790.

Adding to 142044317 its reverse (713440241), we get a palindrome (855484558).

The spelling of 142044317 in words is "one hundred forty-two million, forty-four thousand, three hundred seventeen".