45370221 has 8 divisors (see below), whose sum is σ = 65147040. Its totient is φ = 27920112.

The previous prime is 45370219. The next prime is 45370261. The reversal of 45370221 is 12207354.

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

It is not a de Polignac number, because 45370221 - 2¹ = 45370219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 45370191 and 45370200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45370201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 581631 + ... + 581708.

It is an arithmetic number, because the mean of its divisors is an integer number (8143380).

Almost surely, 2^45370221 is an apocalyptic number.

It is an amenable number.

45370221 is a deficient number, since it is larger than the sum of its proper divisors (19776819).

45370221 is a wasteful number, since it uses less digits than its factorization.

45370221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163355.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 45370221 is about 6735.7420526621. The cubic root of 45370221 is about 356.6621021145.

Adding to 45370221 its reverse (12207354), we get a palindrome (57577575).

The spelling of 45370221 in words is "forty-five million, three hundred seventy thousand, two hundred twenty-one".