134278553 has 4 divisors (see below), whose sum is σ = 134306340. Its totient is φ = 134250768.

The previous prime is 134278511. The next prime is 134278561. The reversal of 134278553 is 355872431.

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 37295449 + 96983104 = 6107^2 + 9848^2 .

It is a cyclic number.

It is not a de Polignac number, because 134278553 - 2⁸ = 134278297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134278583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4550 + ... + 17007.

It is an arithmetic number, because the mean of its divisors is an integer number (33576585).

Almost surely, 2^134278553 is an apocalyptic number.

It is an amenable number.

134278553 is a deficient number, since it is larger than the sum of its proper divisors (27787).

134278553 is an equidigital number, since it uses as much as digits as its factorization.

134278553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27786.

The product of its digits is 100800, while the sum is 38.

The square root of 134278553 is about 11587.8623136453. The cubic root of 134278553 is about 512.0773313065.

The spelling of 134278553 in words is "one hundred thirty-four million, two hundred seventy-eight thousand, five hundred fifty-three".