135541305 has 24 divisors (see below), whose sum is σ = 237227328. Its totient is φ = 71584416.

The previous prime is 135541303. The next prime is 135541309. The reversal of 135541305 is 503145531.

135541305 is a `hidden beast` number, since 1 + 355 + 4 + 1 + 305 = 666.

It is not a de Polignac number, because 135541305 - 2¹ = 135541303 is a prime.

It is a super-2 number, since 2×135541305² = 36742890722206050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (135541303) 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, 9987 + ... + 19256.

It is an arithmetic number, because the mean of its divisors is an integer number (9884472).

Almost surely, 2^135541305 is an apocalyptic number.

135541305 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135541305 is a deficient number, since it is larger than the sum of its proper divisors (101686023).

135541305 is a wasteful number, since it uses less digits than its factorization.

135541305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29357 (or 29354 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 27.

The square root of 135541305 is about 11642.2207933023. The cubic root of 135541305 is about 513.6775129939.

Adding to 135541305 its reverse (503145531), we get a palindrome (638686836).

The spelling of 135541305 in words is "one hundred thirty-five million, five hundred forty-one thousand, three hundred five".