1814749 has 2 divisors, whose sum is σ = 1814750. Its totient is φ = 1814748.

The previous prime is 1814737. The next prime is 1814753. The reversal of 1814749 is 9474181.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1338649 + 476100 = 1157^2 + 690^2 .

It is an emirp because it is prime and its reverse (9474181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1814749 - 2⁹ = 1814237 is a prime.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1814719) 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, 907374 + 907375.

It is an arithmetic number, because the mean of its divisors is an integer number (907375).

2^1814749 is an apocalyptic number.

It is an amenable number.

1814749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1814749 is an equidigital number, since it uses as much as digits as its factorization.

1814749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8064, while the sum is 34.

The square root of 1814749 is about 1347.1262004727. The cubic root of 1814749 is about 121.9753824736.

The spelling of 1814749 in words is "one million, eight hundred fourteen thousand, seven hundred forty-nine".