113101145 has 4 divisors (see below), whose sum is σ = 135721380. Its totient is φ = 90480912.

The previous prime is 113101141. The next prime is 113101147. The reversal of 113101145 is 541101311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 541101311 = 31 ⋅17454881.

It can be written as a sum of positive squares in 2 ways, for example, as 17530969 + 95570176 = 4187^2 + 9776^2 .

It is a cyclic number.

It is not a de Polignac number, because 113101145 - 2² = 113101141 is a prime.

It is a super-2 number, since 2×113101145² = 25583738000622050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113101141) 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, 11310110 + ... + 11310119.

It is an arithmetic number, because the mean of its divisors is an integer number (33930345).

Almost surely, 2^113101145 is an apocalyptic number.

It is an amenable number.

113101145 is a deficient number, since it is larger than the sum of its proper divisors (22620235).

113101145 is an equidigital number, since it uses as much as digits as its factorization.

113101145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22620234.

The product of its (nonzero) digits is 60, while the sum is 17.

The square root of 113101145 is about 10634.9022092354. The cubic root of 113101145 is about 483.6030158353.

Adding to 113101145 its reverse (541101311), we get a palindrome (654202456).

The spelling of 113101145 in words is "one hundred thirteen million, one hundred one thousand, one hundred forty-five".