134553121 has 4 divisors (see below), whose sum is σ = 135076932. Its totient is φ = 134029312.

The previous prime is 134553101. The next prime is 134553131. The reversal of 134553121 is 121355431.

It is a happy number.

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 92160000 + 42393121 = 9600^2 + 6511^2 .

It is a cyclic number.

It is not a de Polignac number, because 134553121 - 2¹⁷ = 134422049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134553101) 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, 261520 + ... + 262033.

It is an arithmetic number, because the mean of its divisors is an integer number (33769233).

Almost surely, 2^134553121 is an apocalyptic number.

It is an amenable number.

134553121 is a deficient number, since it is larger than the sum of its proper divisors (523811).

134553121 is an equidigital number, since it uses as much as digits as its factorization.

134553121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523810.

The product of its digits is 1800, while the sum is 25.

The square root of 134553121 is about 11599.7034875897. The cubic root of 134553121 is about 512.4261195107.

The spelling of 134553121 in words is "one hundred thirty-four million, five hundred fifty-three thousand, one hundred twenty-one".