142385797 has 2 divisors, whose sum is σ = 142385798. Its totient is φ = 142385796.

The previous prime is 142385783. The next prime is 142385807. The reversal of 142385797 is 797583241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 129754881 + 12630916 = 11391^2 + 3554^2 .

It is a cyclic number.

It is not a de Polignac number, because 142385797 - 2¹¹ = 142383749 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 (142385717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71192898 + 71192899.

It is an arithmetic number, because the mean of its divisors is an integer number (71192899).

Almost surely, 2^142385797 is an apocalyptic number.

It is an amenable number.

142385797 is a deficient number, since it is larger than the sum of its proper divisors (1).

142385797 is an equidigital number, since it uses as much as digits as its factorization.

142385797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 46.

The square root of 142385797 is about 11932.5519902492. The cubic root of 142385797 is about 522.1823922358.

The spelling of 142385797 in words is "one hundred forty-two million, three hundred eighty-five thousand, seven hundred ninety-seven".