135511041 has 4 divisors (see below), whose sum is σ = 180681392. Its totient is φ = 90340692.

The previous prime is 135511039. The next prime is 135511043. The reversal of 135511041 is 140115531.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140115531 = 3 ⋅46705177.

It is an interprime number because it is at equal distance from previous prime (135511039) and next prime (135511043).

It is not a de Polignac number, because 135511041 - 2¹ = 135511039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135510999 and 135511017.

It is not an unprimeable number, because it can be changed into a prime (135511043) 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, 22585171 + ... + 22585176.

It is an arithmetic number, because the mean of its divisors is an integer number (45170348).

Almost surely, 2^135511041 is an apocalyptic number.

It is an amenable number.

135511041 is a deficient number, since it is larger than the sum of its proper divisors (45170351).

135511041 is an equidigital number, since it uses as much as digits as its factorization.

135511041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45170350.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 135511041 is about 11640.9209687206. The cubic root of 135511041 is about 513.6392784168.

Adding to 135511041 its reverse (140115531), we get a palindrome (275626572).

The spelling of 135511041 in words is "one hundred thirty-five million, five hundred eleven thousand, forty-one".