45222013 has 2 divisors, whose sum is σ = 45222014. Its totient is φ = 45222012.

The previous prime is 45222011. The next prime is 45222019. The reversal of 45222013 is 31022254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42797764 + 2424249 = 6542^2 + 1557^2 .

It is a cyclic number.

It is not a de Polignac number, because 45222013 - 2¹ = 45222011 is a prime.

Together with 45222011, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45222011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22611006 + 22611007.

It is an arithmetic number, because the mean of its divisors is an integer number (22611007).

Almost surely, 2^45222013 is an apocalyptic number.

It is an amenable number.

45222013 is a deficient number, since it is larger than the sum of its proper divisors (1).

45222013 is an equidigital number, since it uses as much as digits as its factorization.

45222013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 45222013 is about 6724.7314444519. The cubic root of 45222013 is about 356.2733167051.

Adding to 45222013 its reverse (31022254), we get a palindrome (76244267).

The spelling of 45222013 in words is "forty-five million, two hundred twenty-two thousand, thirteen".