134435405 has 16 divisors (see below), whose sum is σ = 183952944. Its totient is φ = 93434880.

The previous prime is 134435377. The next prime is 134435407. The reversal of 134435405 is 504534431.

It can be written as a sum of positive squares in 8 ways, for example, as 292681 + 134142724 = 541^2 + 11582^2 .

It is not a de Polignac number, because 134435405 - 2¹⁰ = 134434381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134435407) 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, 59726 + ... + 61935.

It is an arithmetic number, because the mean of its divisors is an integer number (11497059).

Almost surely, 2^134435405 is an apocalyptic number.

It is an amenable number.

134435405 is a deficient number, since it is larger than the sum of its proper divisors (49517539).

134435405 is a wasteful number, since it uses less digits than its factorization.

134435405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121696.

The product of its (nonzero) digits is 14400, while the sum is 29.

The square root of 134435405 is about 11594.6282820968. The cubic root of 134435405 is about 512.2766411187.

Adding to 134435405 its reverse (504534431), we get a palindrome (638969836).

The spelling of 134435405 in words is "one hundred thirty-four million, four hundred thirty-five thousand, four hundred five".