18552103 has 2 divisors, whose sum is σ = 18552104. Its totient is φ = 18552102.

The previous prime is 18552073. The next prime is 18552109. The reversal of 18552103 is 30125581.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18552103 - 2⁵ = 18552071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18552109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9276051 + 9276052.

It is an arithmetic number, because the mean of its divisors is an integer number (9276052).

Almost surely, 2^18552103 is an apocalyptic number.

18552103 is a deficient number, since it is larger than the sum of its proper divisors (1).

18552103 is an equidigital number, since it uses as much as digits as its factorization.

18552103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 18552103 is about 4307.2152256417. The cubic root of 18552103 is about 264.7266815310.

Adding to 18552103 its reverse (30125581), we get a palindrome (48677684).

The spelling of 18552103 in words is "eighteen million, five hundred fifty-two thousand, one hundred three".