45221905 has 8 divisors (see below), whose sum is σ = 54600192. Its totient is φ = 35954928.

The previous prime is 45221867. The next prime is 45221971. The reversal of 45221905 is 50912254.

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

It is a cyclic number.

It is not a de Polignac number, because 45221905 - 2²³ = 36833297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26929 + ... + 28558.

It is an arithmetic number, because the mean of its divisors is an integer number (6825024).

Almost surely, 2^45221905 is an apocalyptic number.

It is an amenable number.

45221905 is a deficient number, since it is larger than the sum of its proper divisors (9378287).

45221905 is a wasteful number, since it uses less digits than its factorization.

45221905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55655.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 45221905 is about 6724.7234143866. The cubic root of 45221905 is about 356.2730330855.

The spelling of 45221905 in words is "forty-five million, two hundred twenty-one thousand, nine hundred five".