45213361 has 4 divisors (see below), whose sum is σ = 45295092. Its totient is φ = 45131632.

The previous prime is 45213347. The next prime is 45213367. The reversal of 45213361 is 16331254.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7317025 + 37896336 = 2705^2 + 6156^2 .

It is a cyclic number.

It is not a de Polignac number, because 45213361 - 2¹⁵ = 45180593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45213367) 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, 40030 + ... + 41143.

It is an arithmetic number, because the mean of its divisors is an integer number (11323773).

Almost surely, 2^45213361 is an apocalyptic number.

It is an amenable number.

45213361 is a deficient number, since it is larger than the sum of its proper divisors (81731).

45213361 is an equidigital number, since it uses as much as digits as its factorization.

45213361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81730.

The product of its digits is 2160, while the sum is 25.

The square root of 45213361 is about 6724.0881166148. The cubic root of 45213361 is about 356.2505941921.

The spelling of 45213361 in words is "forty-five million, two hundred thirteen thousand, three hundred sixty-one".