134778574 has 32 divisors (see below), whose sum is σ = 243855360. Its totient is φ = 54618432.

The previous prime is 134778569. The next prime is 134778599. The reversal of 134778574 is 475877431.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 26307 + ... + 31009.

It is an arithmetic number, because the mean of its divisors is an integer number (7620480).

Almost surely, 2^134778574 is an apocalyptic number.

134778574 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

134778574 is a deficient number, since it is larger than the sum of its proper divisors (109076786).

134778574 is a wasteful number, since it uses less digits than its factorization.

134778574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4824.

The product of its digits is 658560, while the sum is 46.

The square root of 134778574 is about 11609.4174703126. The cubic root of 134778574 is about 512.7121615340.

The spelling of 134778574 in words is "one hundred thirty-four million, seven hundred seventy-eight thousand, five hundred seventy-four".