105115245 has 16 divisors (see below), whose sum is σ = 169852032. Its totient is φ = 55505600.

The previous prime is 105115237. The next prime is 105115249. The reversal of 105115245 is 542511501.

It is not a de Polignac number, because 105115245 - 2³ = 105115237 is a prime.

It is a super-2 number, since 2×105115245² = 22098429462820050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105115249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33177 + ... + 36206.

It is an arithmetic number, because the mean of its divisors is an integer number (10615752).

Almost surely, 2^105115245 is an apocalyptic number.

105115245 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

105115245 is a deficient number, since it is larger than the sum of its proper divisors (64736787).

105115245 is a wasteful number, since it uses less digits than its factorization.

105115245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69492.

The product of its (nonzero) digits is 1000, while the sum is 24.

The square root of 105115245 is about 10252.5726039858. The cubic root of 105115245 is about 471.9419351272.

Adding to 105115245 its reverse (542511501), we get a palindrome (647626746).

The spelling of 105115245 in words is "one hundred five million, one hundred fifteen thousand, two hundred forty-five".