134404477 has 4 divisors (see below), whose sum is σ = 135155520. Its totient is φ = 133653436.

The previous prime is 134404471. The next prime is 134404489. The reversal of 134404477 is 774404431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 774404431 = 2803 ⋅276277.

It is a cyclic number.

It is not a de Polignac number, because 134404477 - 2³ = 134404469 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 (134404471) 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, 375253 + ... + 375610.

It is an arithmetic number, because the mean of its divisors is an integer number (33788880).

Almost surely, 2^134404477 is an apocalyptic number.

It is an amenable number.

134404477 is a deficient number, since it is larger than the sum of its proper divisors (751043).

134404477 is an equidigital number, since it uses as much as digits as its factorization.

134404477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 751042.

The product of its (nonzero) digits is 37632, while the sum is 34.

The square root of 134404477 is about 11593.2944843129. The cubic root of 134404477 is about 512.2373535836.

The spelling of 134404477 in words is "one hundred thirty-four million, four hundred four thousand, four hundred seventy-seven".