142065797 has 2 divisors, whose sum is σ = 142065798. Its totient is φ = 142065796.

The previous prime is 142065773. The next prime is 142065823. The reversal of 142065797 is 797560241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133310116 + 8755681 = 11546^2 + 2959^2 .

It is an emirp because it is prime and its reverse (797560241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142065797 - 2⁸ = 142065541 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 (142065727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71032898 + 71032899.

It is an arithmetic number, because the mean of its divisors is an integer number (71032899).

Almost surely, 2^142065797 is an apocalyptic number.

It is an amenable number.

142065797 is a deficient number, since it is larger than the sum of its proper divisors (1).

142065797 is an equidigital number, since it uses as much as digits as its factorization.

142065797 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 105840, while the sum is 41.

The square root of 142065797 is about 11919.1357488704. The cubic root of 142065797 is about 521.7909119398.

The spelling of 142065797 in words is "one hundred forty-two million, sixty-five thousand, seven hundred ninety-seven".