113105145 has 32 divisors (see below), whose sum is σ = 190294272. Its totient is φ = 57254912.

The previous prime is 113105137. The next prime is 113105149. The reversal of 113105145 is 541501311.

It is a happy number.

It is not a de Polignac number, because 113105145 - 2³ = 113105137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113105149) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46069 + ... + 48461.

It is an arithmetic number, because the mean of its divisors is an integer number (5946696).

Almost surely, 2^113105145 is an apocalyptic number.

113105145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113105145 is a deficient number, since it is larger than the sum of its proper divisors (77189127).

113105145 is a wasteful number, since it uses less digits than its factorization.

113105145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its (nonzero) digits is 300, while the sum is 21.

The square root of 113105145 is about 10635.0902676000. The cubic root of 113105145 is about 483.6087168954.

Adding to 113105145 its reverse (541501311), we get a palindrome (654606456).

The spelling of 113105145 in words is "one hundred thirteen million, one hundred five thousand, one hundred forty-five".