134479520 has 144 divisors (see below), whose sum is σ = 391706280. Its totient is φ = 43352064.

The previous prime is 134479493. The next prime is 134479547. The reversal of 134479520 is 25974431.

It is an interprime number because it is at equal distance from previous prime (134479493) and next prime (134479547).

It can be written as a sum of positive squares in 4 ways, for example, as 112614544 + 21864976 = 10612^2 + 4676^2 .

It is a Harshad number since it is a multiple of its sum of digits (35).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132776 + ... + 133784.

Almost surely, 2^134479520 is an apocalyptic number.

134479520 is a gapful number since it is divisible by the number (10) 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 134479520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (195853140).

134479520 is an abundant number, since it is smaller than the sum of its proper divisors (257226760).

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

134479520 is a wasteful number, since it uses less digits than its factorization.

134479520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055 (or 1040 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 134479520 is about 11596.5305156327. The cubic root of 134479520 is about 512.3326695449.

The spelling of 134479520 in words is "one hundred thirty-four million, four hundred seventy-nine thousand, five hundred twenty".