135893864 has 8 divisors (see below), whose sum is σ = 254801010. Its totient is φ = 67946928.

The previous prime is 135893843. The next prime is 135893893. The reversal of 135893864 is 468398531.

It can be written as a sum of positive squares in only one way, i.e., 86304100 + 49589764 = 9290^2 + 7042^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

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, 8493359 + ... + 8493374.

Almost surely, 2^135893864 is an apocalyptic number.

It is an amenable number.

135893864 is a deficient number, since it is larger than the sum of its proper divisors (118907146).

135893864 is a wasteful number, since it uses less digits than its factorization.

135893864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16986739 (or 16986735 counting only the distinct ones).

The product of its digits is 622080, while the sum is 47.

The square root of 135893864 is about 11657.3523580614. The cubic root of 135893864 is about 514.1225060892.

The spelling of 135893864 in words is "one hundred thirty-five million, eight hundred ninety-three thousand, eight hundred sixty-four".