134026561 has 4 divisors (see below), whose sum is σ = 134059824. Its totient is φ = 133993300.

The previous prime is 134026553. The next prime is 134026579. The reversal of 134026561 is 165620431.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 134026561 - 2³ = 134026553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134026511) 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, 9595 + ... + 18976.

It is an arithmetic number, because the mean of its divisors is an integer number (33514956).

Almost surely, 2^134026561 is an apocalyptic number.

It is an amenable number.

134026561 is a deficient number, since it is larger than the sum of its proper divisors (33263).

134026561 is an equidigital number, since it uses as much as digits as its factorization.

134026561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33262.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 134026561 is about 11576.9841064070. The cubic root of 134026561 is about 511.7568030905.

Adding to 134026561 its reverse (165620431), we get a palindrome (299646992).

The spelling of 134026561 in words is "one hundred thirty-four million, twenty-six thousand, five hundred sixty-one".