134155555 has 4 divisors (see below), whose sum is σ = 160986672. Its totient is φ = 107324440.

The previous prime is 134155529. The next prime is 134155591. The reversal of 134155555 is 555551431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 555551431 = 19 ⋅29239549.

It is not a de Polignac number, because 134155555 - 2¹⁷ = 134024483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 134155555.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13415551 + ... + 13415560.

It is an arithmetic number, because the mean of its divisors is an integer number (40246668).

Almost surely, 2^134155555 is an apocalyptic number.

134155555 is a deficient number, since it is larger than the sum of its proper divisors (26831117).

134155555 is an equidigital number, since it uses as much as digits as its factorization.

134155555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26831116.

The product of its digits is 37500, while the sum is 34.

The square root of 134155555 is about 11582.5539066304. The cubic root of 134155555 is about 511.9209307321.

The spelling of 134155555 in words is "one hundred thirty-four million, one hundred fifty-five thousand, five hundred fifty-five".