142312277 has 2 divisors, whose sum is σ = 142312278. Its totient is φ = 142312276.

The previous prime is 142312273. The next prime is 142312283. The reversal of 142312277 is 772213241.

142312277 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142301041 + 11236 = 11929^2 + 106^2 .

It is a cyclic number.

It is not a de Polignac number, because 142312277 - 2² = 142312273 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 (142312273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71156138 + 71156139.

It is an arithmetic number, because the mean of its divisors is an integer number (71156139).

Almost surely, 2^142312277 is an apocalyptic number.

It is an amenable number.

142312277 is a deficient number, since it is larger than the sum of its proper divisors (1).

142312277 is an equidigital number, since it uses as much as digits as its factorization.

142312277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4704, while the sum is 29.

The square root of 142312277 is about 11929.4709438432. The cubic root of 142312277 is about 522.0925015777.

The spelling of 142312277 in words is "one hundred forty-two million, three hundred twelve thousand, two hundred seventy-seven".