134420407 has 4 divisors (see below), whose sum is σ = 146640456. Its totient is φ = 122200360.

The previous prime is 134420399. The next prime is 134420443. The reversal of 134420407 is 704024431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704024431 = 11 ⋅64002221.

It is a cyclic number.

It is not a de Polignac number, because 134420407 - 2³ = 134420399 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 (134420707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6110008 + ... + 6110029.

It is an arithmetic number, because the mean of its divisors is an integer number (36660114).

Almost surely, 2^134420407 is an apocalyptic number.

134420407 is a deficient number, since it is larger than the sum of its proper divisors (12220049).

134420407 is a wasteful number, since it uses less digits than its factorization.

134420407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12220048.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 134420407 is about 11593.9814990365. The cubic root of 134420407 is about 512.2575900590.

Adding to 134420407 its reverse (704024431), we get a palindrome (838444838).

The spelling of 134420407 in words is "one hundred thirty-four million, four hundred twenty thousand, four hundred seven".