134561451 has 4 divisors (see below), whose sum is σ = 179415272. Its totient is φ = 89707632.

The previous prime is 134561447. The next prime is 134561459. The reversal of 134561451 is 154165431.

It is a happy number.

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

It is not a de Polignac number, because 134561451 - 2² = 134561447 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134561459) 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, 22426906 + ... + 22426911.

It is an arithmetic number, because the mean of its divisors is an integer number (44853818).

Almost surely, 2^134561451 is an apocalyptic number.

134561451 is a deficient number, since it is larger than the sum of its proper divisors (44853821).

134561451 is an equidigital number, since it uses as much as digits as its factorization.

134561451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44853820.

The product of its digits is 7200, while the sum is 30.

The square root of 134561451 is about 11600.0625429348. The cubic root of 134561451 is about 512.4366938263.

The spelling of 134561451 in words is "one hundred thirty-four million, five hundred sixty-one thousand, four hundred fifty-one".