45230221009 has 2 divisors, whose sum is σ = 45230221010. Its totient is φ = 45230221008.

The previous prime is 45230220989. The next prime is 45230221067. The reversal of 45230221009 is 90012203254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23247710784 + 21982510225 = 152472^2 + 148265^2 .

It is a cyclic number.

It is not a de Polignac number, because 45230221009 - 2¹¹ = 45230218961 is a prime.

It is not a weakly prime, because it can be changed into another prime (45239221009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22615110504 + 22615110505.

It is an arithmetic number, because the mean of its divisors is an integer number (22615110505).

Almost surely, 2^45230221009 is an apocalyptic number.

It is an amenable number.

45230221009 is a deficient number, since it is larger than the sum of its proper divisors (1).

45230221009 is an equidigital number, since it uses as much as digits as its factorization.

45230221009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 45230221009 in words is "forty-five billion, two hundred thirty million, two hundred twenty-one thousand, nine".