134256661 has 8 divisors (see below), whose sum is σ = 167385024. Its totient is φ = 104615520.

The previous prime is 134256613. The next prime is 134256719. The reversal of 134256661 is 166652431.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 134256661 - 2²⁷ = 38933 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 (134256601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871720 + ... + 871873.

It is an arithmetic number, because the mean of its divisors is an integer number (20923128).

Almost surely, 2^134256661 is an apocalyptic number.

134256661 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

134256661 is a deficient number, since it is larger than the sum of its proper divisors (33128363).

134256661 is a wasteful number, since it uses less digits than its factorization.

134256661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743611.

The product of its digits is 25920, while the sum is 34.

The square root of 134256661 is about 11586.9176660577. The cubic root of 134256661 is about 512.0495010835.

The spelling of 134256661 in words is "one hundred thirty-four million, two hundred fifty-six thousand, six hundred sixty-one".