142070777 has 2 divisors, whose sum is σ = 142070778. Its totient is φ = 142070776.

The previous prime is 142070767. The next prime is 142070821. The reversal of 142070777 is 777070241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111112681 + 30958096 = 10541^2 + 5564^2 .

It is an emirp because it is prime and its reverse (777070241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142070777 - 2²⁰ = 141022201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142070767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71035388 + 71035389.

It is an arithmetic number, because the mean of its divisors is an integer number (71035389).

Almost surely, 2^142070777 is an apocalyptic number.

It is an amenable number.

142070777 is a deficient number, since it is larger than the sum of its proper divisors (1).

142070777 is an equidigital number, since it uses as much as digits as its factorization.

142070777 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19208, while the sum is 35.

The square root of 142070777 is about 11919.3446548038. The cubic root of 142070777 is about 521.7970088528.

The spelling of 142070777 in words is "one hundred forty-two million, seventy thousand, seven hundred seventy-seven".