104531121 has 8 divisors (see below), whose sum is σ = 154860960. Its totient is φ = 69687396.

The previous prime is 104531111. The next prime is 104531129. The reversal of 104531121 is 121135401.

104531121 is a `hidden beast` number, since 10 + 4 + 531 + 121 = 666.

It is not a de Polignac number, because 104531121 - 2¹⁵ = 104498353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 104531094 and 104531103.

It is not an unprimeable number, because it can be changed into a prime (104531129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1935735 + ... + 1935788.

It is an arithmetic number, because the mean of its divisors is an integer number (19357620).

Almost surely, 2^104531121 is an apocalyptic number.

It is an amenable number.

104531121 is a deficient number, since it is larger than the sum of its proper divisors (50329839).

104531121 is an equidigital number, since it uses as much as digits as its factorization.

104531121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3871532 (or 3871526 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

The square root of 104531121 is about 10224.0462146843. The cubic root of 104531121 is about 471.0661191611.

Adding to 104531121 its reverse (121135401), we get a palindrome (225666522).

The spelling of 104531121 in words is "one hundred four million, five hundred thirty-one thousand, one hundred twenty-one".