135554857 has 2 divisors, whose sum is σ = 135554858. Its totient is φ = 135554856.

The previous prime is 135554851. The next prime is 135554933. The reversal of 135554857 is 758455531.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132802576 + 2752281 = 11524^2 + 1659^2 .

It is a cyclic number.

It is not a de Polignac number, because 135554857 - 2¹⁵ = 135522089 is a prime.

It is not a weakly prime, because it can be changed into another prime (135554851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67777428 + 67777429.

It is an arithmetic number, because the mean of its divisors is an integer number (67777429).

Almost surely, 2^135554857 is an apocalyptic number.

It is an amenable number.

135554857 is a deficient number, since it is larger than the sum of its proper divisors (1).

135554857 is an equidigital number, since it uses as much as digits as its factorization.

135554857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 420000, while the sum is 43.

The square root of 135554857 is about 11642.8027982956. The cubic root of 135554857 is about 513.6946323157.

The spelling of 135554857 in words is "one hundred thirty-five million, five hundred fifty-four thousand, eight hundred fifty-seven".