18248933 has 2 divisors, whose sum is σ = 18248934. Its totient is φ = 18248932.

The previous prime is 18248927. The next prime is 18248941. The reversal of 18248933 is 33984281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15499969 + 2748964 = 3937^2 + 1658^2 .

It is an emirp because it is prime and its reverse (33984281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18248933 - 2¹⁰ = 18247909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18248903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9124466 + 9124467.

It is an arithmetic number, because the mean of its divisors is an integer number (9124467).

Almost surely, 2^18248933 is an apocalyptic number.

It is an amenable number.

18248933 is a deficient number, since it is larger than the sum of its proper divisors (1).

18248933 is an equidigital number, since it uses as much as digits as its factorization.

18248933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 41472, while the sum is 38.

The square root of 18248933 is about 4271.8769879293. The cubic root of 18248933 is about 263.2767403176.

The spelling of 18248933 in words is "eighteen million, two hundred forty-eight thousand, nine hundred thirty-three".