135711241 has 4 divisors (see below), whose sum is σ = 136701972. Its totient is φ = 134720512.

The previous prime is 135711229. The next prime is 135711253. The reversal of 135711241 is 142117531.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (135711229) and next prime (135711253).

It can be written as a sum of positive squares in 2 ways, for example, as 57760000 + 77951241 = 7600^2 + 8829^2 .

It is a cyclic number.

It is not a de Polignac number, because 135711241 - 2¹¹ = 135709193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (135711041) 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, 495160 + ... + 495433.

It is an arithmetic number, because the mean of its divisors is an integer number (34175493).

Almost surely, 2^135711241 is an apocalyptic number.

It is an amenable number.

135711241 is a deficient number, since it is larger than the sum of its proper divisors (990731).

135711241 is an equidigital number, since it uses as much as digits as its factorization.

135711241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990730.

The product of its digits is 840, while the sum is 25.

The square root of 135711241 is about 11649.5167710940. The cubic root of 135711241 is about 513.8920991087.

Adding to 135711241 its reverse (142117531), we get a palindrome (277828772).

The spelling of 135711241 in words is "one hundred thirty-five million, seven hundred eleven thousand, two hundred forty-one".