105513647 has 4 divisors (see below), whose sum is σ = 105534216. Its totient is φ = 105493080.

The previous prime is 105513599. The next prime is 105513659. The reversal of 105513647 is 746315501.

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 105513647 - 2⁸ = 105513391 is a prime.

It is a super-2 number, since 2×105513647² = 22266259406481218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105513697) 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, 4397 + ... + 15177.

It is an arithmetic number, because the mean of its divisors is an integer number (26383554).

Almost surely, 2^105513647 is an apocalyptic number.

105513647 is a deficient number, since it is larger than the sum of its proper divisors (20569).

105513647 is an equidigital number, since it uses as much as digits as its factorization.

105513647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20568.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 105513647 is about 10271.9835961707. The cubic root of 105513647 is about 472.5374261854.

The spelling of 105513647 in words is "one hundred five million, five hundred thirteen thousand, six hundred forty-seven".