134401320 has 96 divisors (see below), whose sum is σ = 462519720. Its totient is φ = 33730560.

The previous prime is 134401313. The next prime is 134401339. The reversal of 134401320 is 23104431.

134401320 is a `hidden beast` number, since 1 + 344 + 0 + 1 + 320 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 130919364 + 3481956 = 11442^2 + 1866^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 134401293 and 134401302.

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, 4861 + ... + 17100.

Almost surely, 2^134401320 is an apocalyptic number.

134401320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

134401320 is an abundant number, since it is smaller than the sum of its proper divisors (328118400).

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

134401320 is a wasteful number, since it uses less digits than its factorization.

134401320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21995 (or 21988 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 134401320 is about 11593.1583272204. The cubic root of 134401320 is about 512.2333429384.

Adding to 134401320 its reverse (23104431), we get a palindrome (157505751).

The spelling of 134401320 in words is "one hundred thirty-four million, four hundred one thousand, three hundred twenty".