45653021 has 4 divisors (see below), whose sum is σ = 45981600. Its totient is φ = 45324444.

The previous prime is 45652993. The next prime is 45653059. The reversal of 45653021 is 12035654.

45653021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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: 12035654 = 2 ⋅6017827.

It is a cyclic number.

It is not a de Polignac number, because 45653021 - 2¹⁰ = 45651997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45653081) 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, 164081 + ... + 164358.

It is an arithmetic number, because the mean of its divisors is an integer number (11495400).

Almost surely, 2^45653021 is an apocalyptic number.

It is an amenable number.

45653021 is a deficient number, since it is larger than the sum of its proper divisors (328579).

45653021 is a wasteful number, since it uses less digits than its factorization.

45653021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328578.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 45653021 is about 6756.7019321560. The cubic root of 45653021 is about 357.4016121250.

Adding to 45653021 its reverse (12035654), we get a palindrome (57688675).

The spelling of 45653021 in words is "forty-five million, six hundred fifty-three thousand, twenty-one".