135520101 has 32 divisors (see below), whose sum is σ = 206236800. Its totient is φ = 87920640.

The previous prime is 135520081. The next prime is 135520123. The reversal of 135520101 is 101025531.

135520101 is a `hidden beast` number, since 13 + 552 + 0 + 101 = 666.

It is not a de Polignac number, because 135520101 - 2¹⁹ = 134995813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135520181) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 175845 + ... + 176613.

It is an arithmetic number, because the mean of its divisors is an integer number (6444900).

Almost surely, 2^135520101 is an apocalyptic number.

It is an amenable number.

135520101 is a deficient number, since it is larger than the sum of its proper divisors (70716699).

135520101 is a wasteful number, since it uses less digits than its factorization.

135520101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 940 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 18.

The square root of 135520101 is about 11641.3101066847. The cubic root of 135520101 is about 513.6507251302.

Adding to 135520101 its reverse (101025531), we get a palindrome (236545632).

The spelling of 135520101 in words is "one hundred thirty-five million, five hundred twenty thousand, one hundred one".