1653748265 has 8 divisors (see below), whose sum is σ = 2137151688. Its totient is φ = 1221229440.

The previous prime is 1653748211. The next prime is 1653748267. The reversal of 1653748265 is 5628473561.

It can be written as a sum of positive squares in 4 ways, for example, as 12931216 + 1640817049 = 3596^2 + 40507^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1653748265 - 2¹⁰ = 1653747241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1653748267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12721076 + ... + 12721205.

It is an arithmetic number, because the mean of its divisors is an integer number (267143961).

Almost surely, 2^1653748265 is an apocalyptic number.

It is an amenable number.

1653748265 is a deficient number, since it is larger than the sum of its proper divisors (483403423).

1653748265 is a wasteful number, since it uses less digits than its factorization.

1653748265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25442299.

The product of its digits is 1209600, while the sum is 47.

The square root of 1653748265 is about 40666.3038030259. The cubic root of 1653748265 is about 1182.5598609122.

The spelling of 1653748265 in words is "one billion, six hundred fifty-three million, seven hundred forty-eight thousand, two hundred sixty-five".