18498133 has 2 divisors, whose sum is σ = 18498134. Its totient is φ = 18498132.

The previous prime is 18498107. The next prime is 18498149. The reversal of 18498133 is 33189481.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9872164 + 8625969 = 3142^2 + 2937^2 .

It is a cyclic number.

It is not a de Polignac number, because 18498133 - 2⁵ = 18498101 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18498092 and 18498101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18498163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9249066 + 9249067.

It is an arithmetic number, because the mean of its divisors is an integer number (9249067).

Almost surely, 2^18498133 is an apocalyptic number.

It is an amenable number.

18498133 is a deficient number, since it is larger than the sum of its proper divisors (1).

18498133 is an equidigital number, since it uses as much as digits as its factorization.

18498133 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 37.

The square root of 18498133 is about 4300.9455937038. The cubic root of 18498133 is about 264.4697263698.

The spelling of 18498133 in words is "eighteen million, four hundred ninety-eight thousand, one hundred thirty-three".