3645000273 has 4 divisors (see below), whose sum is σ = 4860000368. Its totient is φ = 2430000180.

The previous prime is 3645000269. The next prime is 3645000287. The reversal of 3645000273 is 3720005463.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3720005463 = 3 ⋅1240001821.

It is not a de Polignac number, because 3645000273 - 2² = 3645000269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3645000273.

It is not an unprimeable number, because it can be changed into a prime (3645000253) 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 in 3 ways as a sum of consecutive naturals, for example, 607500043 + ... + 607500048.

It is an arithmetic number, because the mean of its divisors is an integer number (1215000092).

Almost surely, 2^3645000273 is an apocalyptic number.

It is an amenable number.

3645000273 is a deficient number, since it is larger than the sum of its proper divisors (1215000095).

3645000273 is a wasteful number, since it uses less digits than its factorization.

3645000273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1215000094.

The product of its (nonzero) digits is 15120, while the sum is 30.

The square root of 3645000273 is about 60373.8376534075. The cubic root of 3645000273 is about 1538.9783904307.

The spelling of 3645000273 in words is "three billion, six hundred forty-five million, two hundred seventy-three", and thus it is an aban number.