45220201 has 4 divisors (see below), whose sum is σ = 48698692. Its totient is φ = 41741712.

The previous prime is 45220177. The next prime is 45220211. The reversal of 45220201 is 10202254.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10202254 = 2 ⋅5101127.

It can be written as a sum of positive squares in 2 ways, for example, as 23270976 + 21949225 = 4824^2 + 4685^2 .

It is a cyclic number.

It is not a de Polignac number, because 45220201 - 2²¹ = 43123049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45220211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1739226 + ... + 1739251.

It is an arithmetic number, because the mean of its divisors is an integer number (12174673).

Almost surely, 2^45220201 is an apocalyptic number.

It is an amenable number.

45220201 is a deficient number, since it is larger than the sum of its proper divisors (3478491).

45220201 is a wasteful number, since it uses less digits than its factorization.

45220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3478490.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 45220201 is about 6724.5967165325. The cubic root of 45220201 is about 356.2685581386.

Adding to 45220201 its reverse (10202254), we get a palindrome (55422455).

The spelling of 45220201 in words is "forty-five million, two hundred twenty thousand, two hundred one".