45622161 has 24 divisors (see below), whose sum is σ = 71471400. Its totient is φ = 27876096.

The previous prime is 45622141. The next prime is 45622189. The reversal of 45622161 is 16122654.

It can be written as a sum of positive squares in 4 ways, for example, as 3825936 + 41796225 = 1956^2 + 6465^2 .

It is not a de Polignac number, because 45622161 - 2¹³ = 45613969 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45622121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16125 + ... + 18741.

It is an arithmetic number, because the mean of its divisors is an integer number (2977975).

Almost surely, 2^45622161 is an apocalyptic number.

It is an amenable number.

45622161 is a deficient number, since it is larger than the sum of its proper divisors (25849239).

45622161 is a wasteful number, since it uses less digits than its factorization.

45622161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2785 (or 2782 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 45622161 is about 6754.4178875755. The cubic root of 45622161 is about 357.3210632397.

The spelling of 45622161 in words is "forty-five million, six hundred twenty-two thousand, one hundred sixty-one".