113333161 has 2 divisors, whose sum is σ = 113333162. Its totient is φ = 113333160.

The previous prime is 113333153. The next prime is 113333173. The reversal of 113333161 is 161333311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108576400 + 4756761 = 10420^2 + 2181^2 .

It is an emirp because it is prime and its reverse (161333311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113333161 - 2³ = 113333153 is a prime.

It is not a weakly prime, because it can be changed into another prime (113333141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56666580 + 56666581.

It is an arithmetic number, because the mean of its divisors is an integer number (56666581).

Almost surely, 2^113333161 is an apocalyptic number.

It is an amenable number.

113333161 is a deficient number, since it is larger than the sum of its proper divisors (1).

113333161 is an equidigital number, since it uses as much as digits as its factorization.

113333161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 486, while the sum is 22.

The square root of 113333161 is about 10645.8048544955. The cubic root of 113333161 is about 483.9334781535.

Adding to 113333161 its reverse (161333311), we get a palindrome (274666472).

The spelling of 113333161 in words is "one hundred thirteen million, three hundred thirty-three thousand, one hundred sixty-one".