134878464 has 108 divisors (see below), whose sum is σ = 444496416. Its totient is φ = 38532096.

The previous prime is 134878441. The next prime is 134878477. The reversal of 134878464 is 464878431.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11947 + ... + 20309.

Almost surely, 2^134878464 is an apocalyptic number.

134878464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 134878464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222248208).

134878464 is an abundant number, since it is smaller than the sum of its proper divisors (309617952).

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

134878464 is an equidigital number, since it uses as much as digits as its factorization.

134878464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8392 (or 8375 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 134878464 is about 11613.7187842654. The cubic root of 134878464 is about 512.8387943486.

The spelling of 134878464 in words is "one hundred thirty-four million, eight hundred seventy-eight thousand, four hundred sixty-four".