49045181 has 2 divisors, whose sum is σ = 49045182. Its totient is φ = 49045180.

The previous prime is 49045163. The next prime is 49045211. The reversal of 49045181 is 18154094.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47265625 + 1779556 = 6875^2 + 1334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49045181 is a prime.

It is a super-2 number, since 2×49045181² = 4810859558645522, 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 (49045151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24522590 + 24522591.

It is an arithmetic number, because the mean of its divisors is an integer number (24522591).

Almost surely, 2^49045181 is an apocalyptic number.

It is an amenable number.

49045181 is a deficient number, since it is larger than the sum of its proper divisors (1).

49045181 is an equidigital number, since it uses as much as digits as its factorization.

49045181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 32.

The square root of 49045181 is about 7003.2264707062. The cubic root of 49045181 is about 366.0430065820.

The spelling of 49045181 in words is "forty-nine million, forty-five thousand, one hundred eighty-one".