134878755 has 32 divisors (see below), whose sum is σ = 235952640. Its totient is φ = 65249280.

The previous prime is 134878753. The next prime is 134878759. The reversal of 134878755 is 557878431.

It is a happy number.

It is not a de Polignac number, because 134878755 - 2¹ = 134878753 is a prime.

It is not an unprimeable number, because it can be changed into a prime (134878753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 126354 + ... + 127416.

It is an arithmetic number, because the mean of its divisors is an integer number (7373520).

Almost surely, 2^134878755 is an apocalyptic number.

134878755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

134878755 is a deficient number, since it is larger than the sum of its proper divisors (101073885).

134878755 is a wasteful number, since it uses less digits than its factorization.

134878755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851.

The product of its digits is 940800, while the sum is 48.

The square root of 134878755 is about 11613.7313125455. The cubic root of 134878755 is about 512.8391631646.

The spelling of 134878755 in words is "one hundred thirty-four million, eight hundred seventy-eight thousand, seven hundred fifty-five".