45463021 has 4 divisors (see below), whose sum is σ = 45515392. Its totient is φ = 45410652.

The previous prime is 45463009. The next prime is 45463057. The reversal of 45463021 is 12036454.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45463021 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 (45461021) 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, 24861 + ... + 26626.

It is an arithmetic number, because the mean of its divisors is an integer number (11378848).

Almost surely, 2^45463021 is an apocalyptic number.

It is an amenable number.

45463021 is a deficient number, since it is larger than the sum of its proper divisors (52371).

45463021 is an equidigital number, since it uses as much as digits as its factorization.

45463021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52370.

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 45463021 is about 6742.6271586081. The cubic root of 45463021 is about 356.9051080748.

Adding to 45463021 its reverse (12036454), we get a palindrome (57499475).

The spelling of 45463021 in words is "forty-five million, four hundred sixty-three thousand, twenty-one".