135893601 has 6 divisors (see below), whose sum is σ = 196290770. Its totient is φ = 90595728.

The previous prime is 135893587. The next prime is 135893609. The reversal of 135893601 is 106398531.

It is a happy number.

135893601 is a `hidden beast` number, since 13 + 589 + 3 + 60 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 102819600 + 33074001 = 10140^2 + 5751^2 .

It is not a de Polignac number, because 135893601 - 2⁷ = 135893473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135893609) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7549636 + ... + 7549653.

Almost surely, 2^135893601 is an apocalyptic number.

It is an amenable number.

135893601 is a deficient number, since it is larger than the sum of its proper divisors (60397169).

135893601 is a wasteful number, since it uses less digits than its factorization.

135893601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15099295 (or 15099292 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 36.

The square root of 135893601 is about 11657.3410776214. The cubic root of 135893601 is about 514.1221744227.

The spelling of 135893601 in words is "one hundred thirty-five million, eight hundred ninety-three thousand, six hundred one".