1498921 has 2 divisors, whose sum is σ = 1498922. Its totient is φ = 1498920.

The previous prime is 1498843. The next prime is 1498927. The reversal of 1498921 is 1298941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1466521 + 32400 = 1211^2 + 180^2 .

It is a cyclic number.

It is not a de Polignac number, because 1498921 - 2¹³ = 1490729 is a prime.

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

1498921 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1498927) 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, 749460 + 749461.

It is an arithmetic number, because the mean of its divisors is an integer number (749461).

2^1498921 is an apocalyptic number.

It is an amenable number.

1498921 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498921 is an equidigital number, since it uses as much as digits as its factorization.

1498921 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 1498921 is about 1224.3042922411. The cubic root of 1498921 is about 114.4439699676.

The spelling of 1498921 in words is "one million, four hundred ninety-eight thousand, nine hundred twenty-one".