45007181 has 4 divisors (see below), whose sum is σ = 47376000. Its totient is φ = 42638364.

The previous prime is 45007163. The next prime is 45007187. The reversal of 45007181 is 18170054.

45007181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 45007181 - 2⁶ = 45007117 is a prime.

It is a super-2 number, since 2×45007181² = 4051292683133522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 45007181.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45007187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1184381 + ... + 1184418.

It is an arithmetic number, because the mean of its divisors is an integer number (11844000).

Almost surely, 2^45007181 is an apocalyptic number.

It is an amenable number.

45007181 is a deficient number, since it is larger than the sum of its proper divisors (2368819).

45007181 is a wasteful number, since it uses less digits than its factorization.

45007181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368818.

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 45007181 is about 6708.7391512862. The cubic root of 45007181 is about 355.7082494803.

The spelling of 45007181 in words is "forty-five million, seven thousand, one hundred eighty-one".