45220229 has 2 divisors, whose sum is σ = 45220230. Its totient is φ = 45220228.

The previous prime is 45220223. The next prime is 45220237. The reversal of 45220229 is 92202254.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27772900 + 17447329 = 5270^2 + 4177^2 .

It is a cyclic number.

It is not a de Polignac number, because 45220229 - 2⁴ = 45220213 is a prime.

It is a super-2 number, since 2×45220229² = 4089738221624882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 45220198 and 45220207.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45220223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22610114 + 22610115.

It is an arithmetic number, because the mean of its divisors is an integer number (22610115).

Almost surely, 2^45220229 is an apocalyptic number.

It is an amenable number.

45220229 is a deficient number, since it is larger than the sum of its proper divisors (1).

45220229 is an equidigital number, since it uses as much as digits as its factorization.

45220229 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 45220229 is about 6724.5987984414. The cubic root of 45220229 is about 356.2686316715.

The spelling of 45220229 in words is "forty-five million, two hundred twenty thousand, two hundred twenty-nine".