135474405 has 16 divisors (see below), whose sum is σ = 236464704. Its totient is φ = 65684480.

The previous prime is 135474401. The next prime is 135474419. The reversal of 135474405 is 504474531.

It is not a de Polignac number, because 135474405 - 2² = 135474401 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135474401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 410364 + ... + 410693.

It is an arithmetic number, because the mean of its divisors is an integer number (14779044).

Almost surely, 2^135474405 is an apocalyptic number.

135474405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135474405 is a deficient number, since it is larger than the sum of its proper divisors (100990299).

135474405 is a wasteful number, since it uses less digits than its factorization.

135474405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821076.

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 135474405 is about 11639.3472755133. The cubic root of 135474405 is about 513.5929860396.

The spelling of 135474405 in words is "one hundred thirty-five million, four hundred seventy-four thousand, four hundred five".