404134131 has 4 divisors (see below), whose sum is σ = 538845512. Its totient is φ = 269422752.

The previous prime is 404134121. The next prime is 404134147. The reversal of 404134131 is 131431404.

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

It is not a de Polignac number, because 404134131 - 2⁵ = 404134099 is a prime.

It is a super-2 number, since 2×404134131² = 326648791678250322, 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 = 404134098 and 404134107.

It is not an unprimeable number, because it can be changed into a prime (404134121) 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, 67355686 + ... + 67355691.

It is an arithmetic number, because the mean of its divisors is an integer number (134711378).

Almost surely, 2^404134131 is an apocalyptic number.

404134131 is a deficient number, since it is larger than the sum of its proper divisors (134711381).

404134131 is a wasteful number, since it uses less digits than its factorization.

404134131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134711380.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 404134131 is about 20103.0875986750. The cubic root of 404134131 is about 739.3359827446.

Adding to 404134131 its reverse (131431404), we get a palindrome (535565535).

It can be divided in two parts, 40413 and 4131, that added together give a palindrome (44544).

The spelling of 404134131 in words is "four hundred four million, one hundred thirty-four thousand, one hundred thirty-one".