18754249 has 2 divisors, whose sum is σ = 18754250. Its totient is φ = 18754248.

The previous prime is 18754243. The next prime is 18754259. The reversal of 18754249 is 94245781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15840400 + 2913849 = 3980^2 + 1707^2 .

It is a cyclic number.

It is not a de Polignac number, because 18754249 - 2¹⁵ = 18721481 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18754243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9377124 + 9377125.

It is an arithmetic number, because the mean of its divisors is an integer number (9377125).

Almost surely, 2^18754249 is an apocalyptic number.

It is an amenable number.

18754249 is a deficient number, since it is larger than the sum of its proper divisors (1).

18754249 is an equidigital number, since it uses as much as digits as its factorization.

18754249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 18754249 is about 4330.6176233881. The cubic root of 18754249 is about 265.6847084967.

The spelling of 18754249 in words is "eighteen million, seven hundred fifty-four thousand, two hundred forty-nine".