134286378 has 16 divisors (see below), whose sum is σ = 268808736. Its totient is φ = 44722800.

The previous prime is 134286367. The next prime is 134286457. The reversal of 134286378 is 873682431.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1948 + ... + 16503.

It is an arithmetic number, because the mean of its divisors is an integer number (16800546).

Almost surely, 2^134286378 is an apocalyptic number.

134286378 is an abundant number, since it is smaller than the sum of its proper divisors (134522358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

134286378 is a wasteful number, since it uses less digits than its factorization.

134286378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19669.

The product of its digits is 193536, while the sum is 42.

The square root of 134286378 is about 11588.1999464973. The cubic root of 134286378 is about 512.0872781104.

The spelling of 134286378 in words is "one hundred thirty-four million, two hundred eighty-six thousand, three hundred seventy-eight".