134420447 has 8 divisors (see below), whose sum is σ = 154420896. Its totient is φ = 114619392.

The previous prime is 134420443. The next prime is 134420449. The reversal of 134420447 is 744024431.

134420447 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134420447 - 2² = 134420443 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134420443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48398 + ... + 51099.

It is an arithmetic number, because the mean of its divisors is an integer number (19302612).

Almost surely, 2^134420447 is an apocalyptic number.

134420447 is a deficient number, since it is larger than the sum of its proper divisors (20000449).

134420447 is an equidigital number, since it uses as much as digits as its factorization.

134420447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99697.

The product of its (nonzero) digits is 10752, while the sum is 29.

The square root of 134420447 is about 11593.9832240693. The cubic root of 134420447 is about 512.2576408705.

Adding to 134420447 its reverse (744024431), we get a palindrome (878444878).

The spelling of 134420447 in words is "one hundred thirty-four million, four hundred twenty thousand, four hundred forty-seven".