142264657 has 2 divisors, whose sum is σ = 142264658. Its totient is φ = 142264656.

The previous prime is 142264649. The next prime is 142264669. The reversal of 142264657 is 756462241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110859841 + 31404816 = 10529^2 + 5604^2 .

It is an emirp because it is prime and its reverse (756462241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 142264657 - 2³ = 142264649 is a prime.

It is not a weakly prime, because it can be changed into another prime (142264697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71132328 + 71132329.

It is an arithmetic number, because the mean of its divisors is an integer number (71132329).

Almost surely, 2^142264657 is an apocalyptic number.

It is an amenable number.

142264657 is a deficient number, since it is larger than the sum of its proper divisors (1).

142264657 is an equidigital number, since it uses as much as digits as its factorization.

142264657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 37.

The square root of 142264657 is about 11927.4748794537. The cubic root of 142264657 is about 522.0342615367.

The spelling of 142264657 in words is "one hundred forty-two million, two hundred sixty-four thousand, six hundred fifty-seven".