113017181 has 2 divisors, whose sum is σ = 113017182. Its totient is φ = 113017180.

The previous prime is 113017159. The next prime is 113017211. The reversal of 113017181 is 181710311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107536900 + 5480281 = 10370^2 + 2341^2 .

It is a cyclic number.

It is not a de Polignac number, because 113017181 - 2⁶ = 113017117 is a prime.

It is a super-2 number, since 2×113017181² = 25545766402373522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113017381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56508590 + 56508591.

It is an arithmetic number, because the mean of its divisors is an integer number (56508591).

Almost surely, 2^113017181 is an apocalyptic number.

It is an amenable number.

113017181 is a deficient number, since it is larger than the sum of its proper divisors (1).

113017181 is an equidigital number, since it uses as much as digits as its factorization.

113017181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 23.

The square root of 113017181 is about 10630.9539082812. The cubic root of 113017181 is about 483.4833138466.

Adding to 113017181 its reverse (181710311), we get a palindrome (294727492).

The spelling of 113017181 in words is "one hundred thirteen million, seventeen thousand, one hundred eighty-one".