135402201 has 24 divisors (see below), whose sum is σ = 214250400. Its totient is φ = 81720000.

The previous prime is 135402191. The next prime is 135402233. The reversal of 135402201 is 102204531.

It is not a de Polignac number, because 135402201 - 2²⁷ = 1184473 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135402251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22125 + ... + 27573.

It is an arithmetic number, because the mean of its divisors is an integer number (8927100).

Almost surely, 2^135402201 is an apocalyptic number.

135402201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135402201 is a deficient number, since it is larger than the sum of its proper divisors (78848199).

135402201 is a wasteful number, since it uses less digits than its factorization.

135402201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5717 (or 5714 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 135402201 is about 11636.2451417972. The cubic root of 135402201 is about 513.5017263460.

Adding to 135402201 its reverse (102204531), we get a palindrome (237606732).

The spelling of 135402201 in words is "one hundred thirty-five million, four hundred two thousand, two hundred one".