45859181 has 2 divisors, whose sum is σ = 45859182. Its totient is φ = 45859180.

The previous prime is 45859159. The next prime is 45859193. The reversal of 45859181 is 18195854.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39564100 + 6295081 = 6290^2 + 2509^2 .

It is a cyclic number.

It is not a de Polignac number, because 45859181 - 2⁶ = 45859117 is a prime.

It is a super-2 number, since 2×45859181² = 4206128963981522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45859381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22929590 + 22929591.

It is an arithmetic number, because the mean of its divisors is an integer number (22929591).

Almost surely, 2^45859181 is an apocalyptic number.

It is an amenable number.

45859181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45859181 is an equidigital number, since it uses as much as digits as its factorization.

45859181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 57600, while the sum is 41.

The square root of 45859181 is about 6771.9407114947. The cubic root of 45859181 is about 357.9387893018.

The spelling of 45859181 in words is "forty-five million, eight hundred fifty-nine thousand, one hundred eighty-one".