135805461 has 8 divisors (see below), whose sum is σ = 197535264. Its totient is φ = 82306320.

The previous prime is 135805447. The next prime is 135805493. The reversal of 135805461 is 164508531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135805461 - 2¹⁴ = 135789077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 4115317 = 135805461 / (1 + 3 + 5 + 8 + 0 + 5 + 4 + 6 + 1).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135805421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2057626 + ... + 2057691.

It is an arithmetic number, because the mean of its divisors is an integer number (24691908).

Almost surely, 2^135805461 is an apocalyptic number.

135805461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

135805461 is a deficient number, since it is larger than the sum of its proper divisors (61729803).

135805461 is a wasteful number, since it uses less digits than its factorization.

135805461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4115331.

The product of its (nonzero) digits is 14400, while the sum is 33.

The square root of 135805461 is about 11653.5600140043. The cubic root of 135805461 is about 514.0109979125.

The spelling of 135805461 in words is "one hundred thirty-five million, eight hundred five thousand, four hundred sixty-one".