105115161 has 8 divisors (see below), whose sum is σ = 142245664. Its totient is φ = 69030720.

The previous prime is 105115159. The next prime is 105115189. The reversal of 105115161 is 161511501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 105115161 - 2¹ = 105115159 is a prime.

It is a super-2 number, since 2×105115161² = 22098394144111842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105115151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 261280 + ... + 261681.

It is an arithmetic number, because the mean of its divisors is an integer number (17780708).

Almost surely, 2^105115161 is an apocalyptic number.

It is an amenable number.

105115161 is a deficient number, since it is larger than the sum of its proper divisors (37130503).

105115161 is an equidigital number, since it uses as much as digits as its factorization.

105115161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523031.

The product of its (nonzero) digits is 150, while the sum is 21.

The square root of 105115161 is about 10252.5685074522. The cubic root of 105115161 is about 471.9418094139.

Adding to 105115161 its reverse (161511501), we get a palindrome (266626662).

The spelling of 105115161 in words is "one hundred five million, one hundred fifteen thousand, one hundred sixty-one".