142605077 has 2 divisors, whose sum is σ = 142605078. Its totient is φ = 142605076.

The previous prime is 142605041. The next prime is 142605079. The reversal of 142605077 is 770506241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74063236 + 68541841 = 8606^2 + 8279^2 .

It is a cyclic number.

It is not a de Polignac number, because 142605077 - 2¹⁰ = 142604053 is a prime.

Together with 142605079, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142605079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71302538 + 71302539.

It is an arithmetic number, because the mean of its divisors is an integer number (71302539).

Almost surely, 2^142605077 is an apocalyptic number.

It is an amenable number.

142605077 is a deficient number, since it is larger than the sum of its proper divisors (1).

142605077 is an equidigital number, since it uses as much as digits as its factorization.

142605077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 32.

The square root of 142605077 is about 11941.7367664842. The cubic root of 142605077 is about 522.4503155522.

The spelling of 142605077 in words is "one hundred forty-two million, six hundred five thousand, seventy-seven".