18113152 has 16 divisors (see below), whose sum is σ = 36085050. Its totient is φ = 9056512.

The previous prime is 18113149. The next prime is 18113153. The reversal of 18113152 is 25131181.

It can be written as a sum of positive squares in only one way, i.e., 14930496 + 3182656 = 3864^2 + 1784^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (18113153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70627 + ... + 70882.

Almost surely, 2^18113152 is an apocalyptic number.

It is an amenable number.

18113152 is a deficient number, since it is larger than the sum of its proper divisors (17971898).

18113152 is an equidigital number, since it uses as much as digits as its factorization.

18113152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141523 (or 141511 counting only the distinct ones).

The product of its digits is 240, while the sum is 22.

The square root of 18113152 is about 4255.9548869789. The cubic root of 18113152 is about 262.6221448184.

The spelling of 18113152 in words is "eighteen million, one hundred thirteen thousand, one hundred fifty-two".