45452201 has 4 divisors (see below), whose sum is σ = 45587412. Its totient is φ = 45316992.

The previous prime is 45452191. The next prime is 45452207. The reversal of 45452201 is 10225454.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10225454 = 2 ⋅5112727.

It can be written as a sum of positive squares in 2 ways, for example, as 15202201 + 30250000 = 3899^2 + 5500^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-45452201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (45452207) 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, 67100 + ... + 67773.

It is an arithmetic number, because the mean of its divisors is an integer number (11396853).

Almost surely, 2^45452201 is an apocalyptic number.

It is an amenable number.

45452201 is a deficient number, since it is larger than the sum of its proper divisors (135211).

45452201 is a wasteful number, since it uses less digits than its factorization.

45452201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135210.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 45452201 is about 6741.8247529879. The cubic root of 45452201 is about 356.8767918771.

Adding to 45452201 its reverse (10225454), we get a palindrome (55677655).

The spelling of 45452201 in words is "forty-five million, four hundred fifty-two thousand, two hundred one".