135638201 has 8 divisors (see below), whose sum is σ = 136728000. Its totient is φ = 134552880.

The previous prime is 135638179. The next prime is 135638213. The reversal of 135638201 is 102836531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 135638201 - 2⁶ = 135638137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135638281) 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 in 7 ways as a sum of consecutive naturals, for example, 82970 + ... + 84588.

It is an arithmetic number, because the mean of its divisors is an integer number (17091000).

Almost surely, 2^135638201 is an apocalyptic number.

It is an amenable number.

135638201 is a deficient number, since it is larger than the sum of its proper divisors (1089799).

135638201 is a wasteful number, since it uses less digits than its factorization.

135638201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2239.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 135638201 is about 11646.3814551989. The cubic root of 135638201 is about 513.7998900566.

The spelling of 135638201 in words is "one hundred thirty-five million, six hundred thirty-eight thousand, two hundred one".