45404161 has 12 divisors (see below), whose sum is σ = 52845156. Its totient is φ = 38846720.

The previous prime is 45404123. The next prime is 45404213. The reversal of 45404161 is 16140454.

It can be written as a sum of positive squares in 2 ways, for example, as 40564161 + 4840000 = 6369^2 + 2200^2 .

It is not a de Polignac number, because 45404161 - 2⁷ = 45404033 is a prime.

It is a super-2 number, since 2×45404161² = 4123075672227842, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45404101) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8980 + ... + 13093.

It is an arithmetic number, because the mean of its divisors is an integer number (4403763).

Almost surely, 2^45404161 is an apocalyptic number.

It is an amenable number.

45404161 is a deficient number, since it is larger than the sum of its proper divisors (7440995).

45404161 is a wasteful number, since it uses less digits than its factorization.

45404161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22112 (or 22101 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 45404161 is about 6738.2609774333. The cubic root of 45404161 is about 356.7510157547.

The spelling of 45404161 in words is "forty-five million, four hundred four thousand, one hundred sixty-one".