142284257 has 2 divisors, whose sum is σ = 142284258. Its totient is φ = 142284256.

The previous prime is 142284251. The next prime is 142284313. The reversal of 142284257 is 752482241.

142284257 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., 140090896 + 2193361 = 11836^2 + 1481^2 .

It is a cyclic number.

It is not a de Polignac number, because 142284257 - 2¹⁰ = 142283233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (142284251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71142128 + 71142129.

It is an arithmetic number, because the mean of its divisors is an integer number (71142129).

Almost surely, 2^142284257 is an apocalyptic number.

It is an amenable number.

142284257 is a deficient number, since it is larger than the sum of its proper divisors (1).

142284257 is an equidigital number, since it uses as much as digits as its factorization.

142284257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 35840, while the sum is 35.

The square root of 142284257 is about 11928.2964835722. The cubic root of 142284257 is about 522.0582342317.

The spelling of 142284257 in words is "one hundred forty-two million, two hundred eighty-four thousand, two hundred fifty-seven".