105546121 has 4 divisors (see below), whose sum is σ = 111101200. Its totient is φ = 99991044.

The previous prime is 105546071. The next prime is 105546127. The reversal of 105546121 is 121645501.

It is a happy number.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105546121 is a prime.

It is a super-2 number, since 2×105546121² = 22279967316293282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105546127) 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, 2777511 + ... + 2777548.

It is an arithmetic number, because the mean of its divisors is an integer number (27775300).

Almost surely, 2^105546121 is an apocalyptic number.

It is an amenable number.

105546121 is a deficient number, since it is larger than the sum of its proper divisors (5555079).

105546121 is an equidigital number, since it uses as much as digits as its factorization.

105546121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5555078.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 105546121 is about 10273.5641819186. The cubic root of 105546121 is about 472.5858989243.

The spelling of 105546121 in words is "one hundred five million, five hundred forty-six thousand, one hundred twenty-one".