104405513 has 4 divisors (see below), whose sum is σ = 109900560. Its totient is φ = 98910468.

The previous prime is 104405507. The next prime is 104405519. The reversal of 104405513 is 315504401.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 315504401 = 17107 ⋅18443.

It is an interprime number because it is at equal distance from previous prime (104405507) and next prime (104405519).

It is a cyclic number.

It is not a de Polignac number, because 104405513 - 2¹² = 104401417 is a prime.

It is a super-2 number, since 2×104405513² = 21801022289586338, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (104405519) 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, 2747495 + ... + 2747532.

It is an arithmetic number, because the mean of its divisors is an integer number (27475140).

Almost surely, 2^104405513 is an apocalyptic number.

It is an amenable number.

104405513 is a deficient number, since it is larger than the sum of its proper divisors (5495047).

104405513 is an equidigital number, since it uses as much as digits as its factorization.

104405513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5495046.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 104405513 is about 10217.9015947503. The cubic root of 104405513 is about 470.8773607370.

Adding to 104405513 its reverse (315504401), we get a palindrome (419909914).

The spelling of 104405513 in words is "one hundred four million, four hundred five thousand, five hundred thirteen".