134413381 has 4 divisors (see below), whose sum is σ = 134557164. Its totient is φ = 134269600.

The previous prime is 134413379. The next prime is 134413393. The reversal of 134413381 is 183314431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38862756 + 95550625 = 6234^2 + 9775^2 .

It is a cyclic number.

It is not a de Polignac number, because 134413381 - 2¹ = 134413379 is a prime.

It is a super-2 number, since 2×134413381² = 36133913983702322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134414381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70480 + ... + 72361.

It is an arithmetic number, because the mean of its divisors is an integer number (33639291).

Almost surely, 2^134413381 is an apocalyptic number.

It is an amenable number.

134413381 is a deficient number, since it is larger than the sum of its proper divisors (143783).

134413381 is an equidigital number, since it uses as much as digits as its factorization.

134413381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143782.

The product of its digits is 3456, while the sum is 28.

The square root of 134413381 is about 11593.6784930409. The cubic root of 134413381 is about 512.2486648652.

The spelling of 134413381 in words is "one hundred thirty-four million, four hundred thirteen thousand, three hundred eighty-one".