134993280 has 64 divisors (see below), whose sum is σ = 430297200. Its totient is φ = 35997696.

The previous prime is 134993249. The next prime is 134993293. The reversal of 134993280 is 82399431.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33235 + ... + 37074.

Almost surely, 2^134993280 is an apocalyptic number.

134993280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134993280 is an abundant number, since it is smaller than the sum of its proper divisors (295303920).

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

134993280 is an equidigital number, since it uses as much as digits as its factorization.

134993280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70331 (or 70319 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 134993280 is about 11618.6608522669. The cubic root of 134993280 is about 512.9842719815.

The spelling of 134993280 in words is "one hundred thirty-four million, nine hundred ninety-three thousand, two hundred eighty".