1498661 has 2 divisors, whose sum is σ = 1498662. Its totient is φ = 1498660.

The previous prime is 1498649. The next prime is 1498667. The reversal of 1498661 is 1668941.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 776161 + 722500 = 881^2 + 850^2 .

It is a cyclic number.

It is not a de Polignac number, because 1498661 - 2¹⁸ = 1236517 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1498667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 749330 + 749331.

It is an arithmetic number, because the mean of its divisors is an integer number (749331).

2^1498661 is an apocalyptic number.

It is an amenable number.

1498661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1498661 is an equidigital number, since it uses as much as digits as its factorization.

1498661 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 35.

The square root of 1498661 is about 1224.1981048834. The cubic root of 1498661 is about 114.4373525068.

The spelling of 1498661 in words is "one million, four hundred ninety-eight thousand, six hundred sixty-one".