134861567 has 4 divisors (see below), whose sum is σ = 135846096. Its totient is φ = 133877040.

The previous prime is 134861537. The next prime is 134861579. The reversal of 134861567 is 765168431.

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 134861567 - 2²⁶ = 67752703 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 (134861537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492059 + ... + 492332.

It is an arithmetic number, because the mean of its divisors is an integer number (33961524).

Almost surely, 2^134861567 is an apocalyptic number.

134861567 is a deficient number, since it is larger than the sum of its proper divisors (984529).

134861567 is an equidigital number, since it uses as much as digits as its factorization.

134861567 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984528.

The product of its digits is 120960, while the sum is 41.

The square root of 134861567 is about 11612.9913028470. The cubic root of 134861567 is about 512.8173780337.

The spelling of 134861567 in words is "one hundred thirty-four million, eight hundred sixty-one thousand, five hundred sixty-seven".