105545401 has 18 divisors (see below), whose sum is σ = 121463322. Its totient is φ = 91653120.

The previous prime is 105545393. The next prime is 105545441. The reversal of 105545401 is 104545501.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 17842176 + 87703225 = 4224^2 + 9365^2 .

It is not a de Polignac number, because 105545401 - 2³ = 105545393 is a prime.

It is a super-2 number, since 2×105545401² = 22279663344501602, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105545441) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 47761 + ... + 49921.

Almost surely, 2^105545401 is an apocalyptic number.

It is an amenable number.

105545401 is a deficient number, since it is larger than the sum of its proper divisors (15917921).

105545401 is a wasteful number, since it uses less digits than its factorization.

105545401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 105545401 is about 10273.5291404658. The cubic root of 105545401 is about 472.5848243147.

The spelling of 105545401 in words is "one hundred five million, five hundred forty-five thousand, four hundred one".