134404331 has 4 divisors (see below), whose sum is σ = 134431464. Its totient is φ = 134377200.

The previous prime is 134404327. The next prime is 134404367. The reversal of 134404331 is 133404431.

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

It is a cyclic number.

It is not a de Polignac number, because 134404331 - 2² = 134404327 is a prime.

It is a super-2 number, since 2×134404331² = 36129048383115122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134404297 and 134404306.

It is not an unprimeable number, because it can be changed into a prime (134404381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3785 + ... + 16826.

It is an arithmetic number, because the mean of its divisors is an integer number (33607866).

Almost surely, 2^134404331 is an apocalyptic number.

134404331 is a deficient number, since it is larger than the sum of its proper divisors (27133).

134404331 is an equidigital number, since it uses as much as digits as its factorization.

134404331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27132.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 134404331 is about 11593.2881875678. The cubic root of 134404331 is about 512.2371681069.

Adding to 134404331 its reverse (133404431), we get a palindrome (267808762).

It can be divided in two parts, 13440 and 4331, that added together give a palindrome (17771).

The spelling of 134404331 in words is "one hundred thirty-four million, four hundred four thousand, three hundred thirty-one".