134428347 has 18 divisors (see below), whose sum is σ = 197014116. Its totient is φ = 88326840.

The previous prime is 134428339. The next prime is 134428351. The reversal of 134428347 is 743824431.

It is not a de Polignac number, because 134428347 - 2³ = 134428339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134428397) 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 17 ways as a sum of consecutive naturals, for example, 43888 + ... + 46850.

Almost surely, 2^134428347 is an apocalyptic number.

134428347 is a deficient number, since it is larger than the sum of its proper divisors (62585769).

134428347 is an equidigital number, since it uses as much as digits as its factorization.

134428347 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3111 (or 3037 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 134428347 is about 11594.3239130188. The cubic root of 134428347 is about 512.2676759412.

The spelling of 134428347 in words is "one hundred thirty-four million, four hundred twenty-eight thousand, three hundred forty-seven".