105380161 has 4 divisors (see below), whose sum is σ = 111579012. Its totient is φ = 99181312.

The previous prime is 105380159. The next prime is 105380167. The reversal of 105380161 is 161083501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28291761 + 77088400 = 5319^2 + 8780^2 .

It is a cyclic number.

It is not a de Polignac number, because 105380161 - 2¹ = 105380159 is a prime.

It is a super-2 number, since 2×105380161² = 22209956664771842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105380167) 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, 3099400 + ... + 3099433.

It is an arithmetic number, because the mean of its divisors is an integer number (27894753).

Almost surely, 2^105380161 is an apocalyptic number.

It is an amenable number.

105380161 is a deficient number, since it is larger than the sum of its proper divisors (6198851).

105380161 is an equidigital number, since it uses as much as digits as its factorization.

105380161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6198850.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 105380161 is about 10265.4839632625. The cubic root of 105380161 is about 472.3380720382.

The spelling of 105380161 in words is "one hundred five million, three hundred eighty thousand, one hundred sixty-one".