1653338459 has 4 divisors (see below), whose sum is σ = 1710350160. Its totient is φ = 1596326760.

The previous prime is 1653338443. The next prime is 1653338461. The reversal of 1653338459 is 9548333561.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1653338459 - 2⁴ = 1653338443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1653338429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28505807 + ... + 28505864.

It is an arithmetic number, because the mean of its divisors is an integer number (427587540).

Almost surely, 2^1653338459 is an apocalyptic number.

1653338459 is a deficient number, since it is larger than the sum of its proper divisors (57011701).

1653338459 is an equidigital number, since it uses as much as digits as its factorization.

1653338459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57011700.

The product of its digits is 1166400, while the sum is 47.

The square root of 1653338459 is about 40661.2648475180. The cubic root of 1653338459 is about 1182.4621716866.

The spelling of 1653338459 in words is "one billion, six hundred fifty-three million, three hundred thirty-eight thousand, four hundred fifty-nine".