134155447 has 4 divisors (see below), whose sum is σ = 141216280. Its totient is φ = 127094616.

The previous prime is 134155429. The next prime is 134155457. The reversal of 134155447 is 744551431.

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

It is a cyclic number.

It is not a de Polignac number, because 134155447 - 2¹⁵ = 134122679 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 (134155457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3530388 + ... + 3530425.

It is an arithmetic number, because the mean of its divisors is an integer number (35304070).

Almost surely, 2^134155447 is an apocalyptic number.

134155447 is a deficient number, since it is larger than the sum of its proper divisors (7060833).

134155447 is an equidigital number, since it uses as much as digits as its factorization.

134155447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7060832.

The product of its digits is 33600, while the sum is 34.

The square root of 134155447 is about 11582.5492444453. The cubic root of 134155447 is about 511.9207933605.

The spelling of 134155447 in words is "one hundred thirty-four million, one hundred fifty-five thousand, four hundred forty-seven".