104513121 has 24 divisors (see below), whose sum is σ = 156349440. Its totient is φ = 67204800.

The previous prime is 104513117. The next prime is 104513147. The reversal of 104513121 is 121315401.

It is not a de Polignac number, because 104513121 - 2² = 104513117 is a prime.

It is a super-2 number, since 2×104513121² = 21845984922321282, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 104513094 and 104513103.

It is not an unprimeable number, because it can be changed into a prime (104513111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 145000 + ... + 145718.

It is an arithmetic number, because the mean of its divisors is an integer number (6514560).

Almost surely, 2^104513121 is an apocalyptic number.

It is an amenable number.

104513121 is a deficient number, since it is larger than the sum of its proper divisors (51836319).

104513121 is a wasteful number, since it uses less digits than its factorization.

104513121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1277 (or 1274 counting only the distinct ones).

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

The square root of 104513121 is about 10223.1658990745. The cubic root of 104513121 is about 471.0390788028.

Adding to 104513121 its reverse (121315401), we get a palindrome (225828522).

The spelling of 104513121 in words is "one hundred four million, five hundred thirteen thousand, one hundred twenty-one".