1638053 has 2 divisors, whose sum is σ = 1638054. Its totient is φ = 1638052.

The previous prime is 1638031. The next prime is 1638059. The reversal of 1638053 is 3508361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1249924 + 388129 = 1118^2 + 623^2 .

It is an emirp because it is prime and its reverse (3508361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1638053 - 2¹⁰ = 1637029 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1638059) 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, 819026 + 819027.

It is an arithmetic number, because the mean of its divisors is an integer number (819027).

2^1638053 is an apocalyptic number.

It is an amenable number.

1638053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1638053 is an equidigital number, since it uses as much as digits as its factorization.

1638053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1638053 is about 1279.8644459473. The cubic root of 1638053 is about 117.8806847196.

The spelling of 1638053 in words is "one million, six hundred thirty-eight thousand, fifty-three".