45301221 has 16 divisors (see below), whose sum is σ = 76700800. Its totient is φ = 25886304.

The previous prime is 45301213. The next prime is 45301271. The reversal of 45301221 is 12210354.

It is not a de Polignac number, because 45301221 - 2³ = 45301213 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 45301194 and 45301203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45301211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119656 + ... + 120033.

It is an arithmetic number, because the mean of its divisors is an integer number (4793800).

Almost surely, 2^45301221 is an apocalyptic number.

It is an amenable number.

45301221 is a deficient number, since it is larger than the sum of its proper divisors (31399579).

45301221 is a wasteful number, since it uses less digits than its factorization.

45301221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239705 (or 239699 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 45301221 is about 6730.6181736895. The cubic root of 45301221 is about 356.4812039343.

Adding to 45301221 its reverse (12210354), we get a palindrome (57511575).

The spelling of 45301221 in words is "forty-five million, three hundred one thousand, two hundred twenty-one".