134166121 has 4 divisors (see below), whose sum is σ = 134349892. Its totient is φ = 133982352.

The previous prime is 134166101. The next prime is 134166127. The reversal of 134166121 is 121661431.

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

It can be written as a sum of positive squares in 2 ways, for example, as 58736896 + 75429225 = 7664^2 + 8685^2 .

It is a cyclic number.

It is not a de Polignac number, because 134166121 - 2⁵ = 134166089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134166127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 90786 + ... + 92251.

It is an arithmetic number, because the mean of its divisors is an integer number (33587473).

Almost surely, 2^134166121 is an apocalyptic number.

It is an amenable number.

134166121 is a deficient number, since it is larger than the sum of its proper divisors (183771).

134166121 is an equidigital number, since it uses as much as digits as its factorization.

134166121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183770.

The product of its digits is 864, while the sum is 25.

The square root of 134166121 is about 11583.0100146724. The cubic root of 134166121 is about 511.9343698937.

The spelling of 134166121 in words is "one hundred thirty-four million, one hundred sixty-six thousand, one hundred twenty-one".