134403234220405 has 4 divisors (see below), whose sum is σ = 161283881064492. Its totient is φ = 107522587376320.

The previous prime is 134403234220393. The next prime is 134403234220439. The reversal of 134403234220405 is 504022432304431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 76385047941316 + 58018186279089 = 8739854^2 + 7616967^2 .

It is not a de Polignac number, because 134403234220405 - 2²⁵ = 134403200665973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13440323422036 + ... + 13440323422045.

It is an arithmetic number, because the mean of its divisors is an integer number (40320970266123).

Almost surely, 2^{134403234220405} is an apocalyptic number.

It is an amenable number.

134403234220405 is a deficient number, since it is larger than the sum of its proper divisors (26880646844087).

134403234220405 is an equidigital number, since it uses as much as digits as its factorization.

134403234220405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26880646844086.

The product of its (nonzero) digits is 276480, while the sum is 37.

Adding to 134403234220405 its reverse (504022432304431), we get a palindrome (638425666524836).

The spelling of 134403234220405 in words is "one hundred thirty-four trillion, four hundred three billion, two hundred thirty-four million, two hundred twenty thousand, four hundred five".