45421851 has 8 divisors (see below), whose sum is σ = 62516224. Its totient is φ = 29304360.

The previous prime is 45421847. The next prime is 45421853. The reversal of 45421851 is 15812454.

45421851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 45421851 - 2² = 45421847 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45421853) 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 7 ways as a sum of consecutive naturals, for example, 244111 + ... + 244296.

It is an arithmetic number, because the mean of its divisors is an integer number (7814528).

Almost surely, 2^45421851 is an apocalyptic number.

45421851 is a deficient number, since it is larger than the sum of its proper divisors (17094373).

45421851 is a wasteful number, since it uses less digits than its factorization.

45421851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488441.

The product of its digits is 6400, while the sum is 30.

The square root of 45421851 is about 6739.5735028264. The cubic root of 45421851 is about 356.7973412155.

The spelling of 45421851 in words is "forty-five million, four hundred twenty-one thousand, eight hundred fifty-one".