45243161 has 16 divisors (see below), whose sum is σ = 49675200. Its totient is φ = 41041728.

The previous prime is 45243127. The next prime is 45243169. The reversal of 45243161 is 16134254.

45243161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 45243161 - 2⁶ = 45243097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 45243161.

It is not an unprimeable number, because it can be changed into a prime (45243169) 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 15 ways as a sum of consecutive naturals, for example, 86246 + ... + 86768.

It is an arithmetic number, because the mean of its divisors is an integer number (3104700).

Almost surely, 2^45243161 is an apocalyptic number.

It is an amenable number.

45243161 is a deficient number, since it is larger than the sum of its proper divisors (4432039).

45243161 is a wasteful number, since it uses less digits than its factorization.

45243161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728.

The product of its digits is 2880, while the sum is 26.

The square root of 45243161 is about 6726.3036654614. The cubic root of 45243161 is about 356.3288449270.

The spelling of 45243161 in words is "forty-five million, two hundred forty-three thousand, one hundred sixty-one".