135201541 has 4 divisors (see below), whose sum is σ = 135270784. Its totient is φ = 135132300.

The previous prime is 135201523. The next prime is 135201623. The reversal of 135201541 is 145102531.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 135201541 - 2¹³ = 135193349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135205541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31605 + ... + 35626.

It is an arithmetic number, because the mean of its divisors is an integer number (33817696).

Almost surely, 2^135201541 is an apocalyptic number.

It is an amenable number.

135201541 is a deficient number, since it is larger than the sum of its proper divisors (69243).

135201541 is an equidigital number, since it uses as much as digits as its factorization.

135201541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69242.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 135201541 is about 11627.6197478246. The cubic root of 135201541 is about 513.2479387477.

The spelling of 135201541 in words is "one hundred thirty-five million, two hundred one thousand, five hundred forty-one".