45306181 has 2 divisors, whose sum is σ = 45306182. Its totient is φ = 45306180.

The previous prime is 45306161. The next prime is 45306193. The reversal of 45306181 is 18160354.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44222500 + 1083681 = 6650^2 + 1041^2 .

It is a cyclic number.

It is not a de Polignac number, because 45306181 - 2²⁵ = 11751749 is a prime.

It is a super-2 number, since 2×45306181² = 4105300073609522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (45306101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 22653090 + 22653091.

It is an arithmetic number, because the mean of its divisors is an integer number (22653091).

Almost surely, 2^45306181 is an apocalyptic number.

It is an amenable number.

45306181 is a deficient number, since it is larger than the sum of its proper divisors (1).

45306181 is an equidigital number, since it uses as much as digits as its factorization.

45306181 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 45306181 is about 6730.9866290166. The cubic root of 45306181 is about 356.4942137547.

The spelling of 45306181 in words is "forty-five million, three hundred six thousand, one hundred eighty-one".