105015131 has 4 divisors (see below), whose sum is σ = 113093232. Its totient is φ = 96937032.

The previous prime is 105015121. The next prime is 105015151. The reversal of 105015131 is 131510501.

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 105015131 - 2⁶ = 105015067 is a prime.

It is a super-2 number, since 2×105015131² = 22056355477894322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105015121) 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, 4039031 + ... + 4039056.

It is an arithmetic number, because the mean of its divisors is an integer number (28273308).

Almost surely, 2^105015131 is an apocalyptic number.

105015131 is a deficient number, since it is larger than the sum of its proper divisors (8078101).

105015131 is an equidigital number, since it uses as much as digits as its factorization.

105015131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8078100.

The product of its (nonzero) digits is 75, while the sum is 17.

The square root of 105015131 is about 10247.6890565629. The cubic root of 105015131 is about 471.7920583488.

Adding to 105015131 its reverse (131510501), we get a palindrome (236525632).

The spelling of 105015131 in words is "one hundred five million, fifteen thousand, one hundred thirty-one".