45208269 has 6 divisors (see below), whose sum is σ = 65300846. Its totient is φ = 30138840.

The previous prime is 45208237. The next prime is 45208279. The reversal of 45208269 is 96280254.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23474025 + 21734244 = 4845^2 + 4662^2 .

It is not a de Polignac number, because 45208269 - 2⁵ = 45208237 is a prime.

It is a super-2 number, since 2×45208269² = 4087575171952722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45208279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2511562 + ... + 2511579.

Almost surely, 2^45208269 is an apocalyptic number.

It is an amenable number.

45208269 is a deficient number, since it is larger than the sum of its proper divisors (20092577).

45208269 is a wasteful number, since it uses less digits than its factorization.

45208269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5023147 (or 5023144 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 45208269 is about 6723.7094672509. The cubic root of 45208269 is about 356.2372198555.

The spelling of 45208269 in words is "forty-five million, two hundred eight thousand, two hundred sixty-nine".