45043213 has 2 divisors, whose sum is σ = 45043214. Its totient is φ = 45043212.

The previous prime is 45043189. The next prime is 45043237. The reversal of 45043213 is 31234054.

It is a balanced prime because it is at equal distance from previous prime (45043189) and next prime (45043237).

It can be written as a sum of positive squares in only one way, i.e., 44382244 + 660969 = 6662^2 + 813^2 .

It is a cyclic number.

It is not a de Polignac number, because 45043213 - 2¹⁷ = 44912141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45040213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22521606 + 22521607.

It is an arithmetic number, because the mean of its divisors is an integer number (22521607).

Almost surely, 2^45043213 is an apocalyptic number.

It is an amenable number.

45043213 is a deficient number, since it is larger than the sum of its proper divisors (1).

45043213 is an equidigital number, since it uses as much as digits as its factorization.

45043213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 45043213 is about 6711.4240664705. The cubic root of 45043213 is about 355.8031488612.

Adding to 45043213 its reverse (31234054), we get a palindrome (76277267).

The spelling of 45043213 in words is "forty-five million, forty-three thousand, two hundred thirteen".