18348133 has 2 divisors, whose sum is σ = 18348134. Its totient is φ = 18348132.

The previous prime is 18348107. The next prime is 18348157. The reversal of 18348133 is 33184381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11068929 + 7279204 = 3327^2 + 2698^2 .

It is a cyclic number.

It is not a de Polignac number, because 18348133 - 2⁹ = 18347621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18348095 and 18348104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18348103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9174066 + 9174067.

It is an arithmetic number, because the mean of its divisors is an integer number (9174067).

Almost surely, 2^18348133 is an apocalyptic number.

It is an amenable number.

18348133 is a deficient number, since it is larger than the sum of its proper divisors (1).

18348133 is an equidigital number, since it uses as much as digits as its factorization.

18348133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 31.

The square root of 18348133 is about 4283.4720729800. The cubic root of 18348133 is about 263.7529301951.

It can be divided in two parts, 18348 and 133, that added together give a palindrome (18481).

The spelling of 18348133 in words is "eighteen million, three hundred forty-eight thousand, one hundred thirty-three".