134885857 has 2 divisors, whose sum is σ = 134885858. Its totient is φ = 134885856.

The previous prime is 134885843. The next prime is 134885879. The reversal of 134885857 is 758588431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120209296 + 14676561 = 10964^2 + 3831^2 .

It is an emirp because it is prime and its reverse (758588431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 134885857 - 2¹⁹ = 134361569 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 134885857.

It is not a weakly prime, because it can be changed into another prime (134885827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67442928 + 67442929.

It is an arithmetic number, because the mean of its divisors is an integer number (67442929).

Almost surely, 2^134885857 is an apocalyptic number.

It is an amenable number.

134885857 is a deficient number, since it is larger than the sum of its proper divisors (1).

134885857 is an equidigital number, since it uses as much as digits as its factorization.

134885857 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1075200, while the sum is 49.

The square root of 134885857 is about 11614.0370672734. The cubic root of 134885857 is about 512.8481641369.

The spelling of 134885857 in words is "one hundred thirty-four million, eight hundred eighty-five thousand, eight hundred fifty-seven".