134320405 has 16 divisors (see below), whose sum is σ = 171360000. Its totient is φ = 100785600.

The previous prime is 134320399. The next prime is 134320411. The reversal of 134320405 is 504023431.

It is an interprime number because it is at equal distance from previous prime (134320399) and next prime (134320411).

It is not a de Polignac number, because 134320405 - 2⁹ = 134319893 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2596 + ... + 16594.

It is an arithmetic number, because the mean of its divisors is an integer number (10710000).

Almost surely, 2^134320405 is an apocalyptic number.

It is an amenable number.

134320405 is a deficient number, since it is larger than the sum of its proper divisors (37039595).

134320405 is a wasteful number, since it uses less digits than its factorization.

134320405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14124.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 134320405 is about 11589.6680280326. The cubic root of 134320405 is about 512.1305272781.

Adding to 134320405 its reverse (504023431), we get a palindrome (638343836).

The spelling of 134320405 in words is "one hundred thirty-four million, three hundred twenty thousand, four hundred five".