18113153 has 2 divisors, whose sum is σ = 18113154. Its totient is φ = 18113152.

The previous prime is 18113149. The next prime is 18113159. The reversal of 18113153 is 35131181.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17875984 + 237169 = 4228^2 + 487^2 .

It is a cyclic number.

It is not a de Polignac number, because 18113153 - 2² = 18113149 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18113159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9056576 + 9056577.

It is an arithmetic number, because the mean of its divisors is an integer number (9056577).

Almost surely, 2^18113153 is an apocalyptic number.

It is an amenable number.

18113153 is a deficient number, since it is larger than the sum of its proper divisors (1).

18113153 is an equidigital number, since it uses as much as digits as its factorization.

18113153 is an evil number, because the sum of its binary digits is even.

The product of its digits is 360, while the sum is 23.

The square root of 18113153 is about 4255.9550044614. The cubic root of 18113153 is about 262.6221496514.

The spelling of 18113153 in words is "eighteen million, one hundred thirteen thousand, one hundred fifty-three".