45180049 has 4 divisors (see below), whose sum is σ = 45687780. Its totient is φ = 44672320.

The previous prime is 45180041. The next prime is 45180059. The reversal of 45180049 is 94008154.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94008154 = 2 ⋅47004077.

It can be written as a sum of positive squares in 2 ways, for example, as 20250000 + 24930049 = 4500^2 + 4993^2 .

It is a cyclic number.

It is not a de Polignac number, because 45180049 - 2³ = 45180041 is a prime.

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 45180049.

It is not an unprimeable number, because it can be changed into a prime (45180041) 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 3 ways as a sum of consecutive naturals, for example, 253732 + ... + 253909.

It is an arithmetic number, because the mean of its divisors is an integer number (11421945).

Almost surely, 2^45180049 is an apocalyptic number.

It is an amenable number.

45180049 is a deficient number, since it is larger than the sum of its proper divisors (507731).

45180049 is an equidigital number, since it uses as much as digits as its factorization.

45180049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507730.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 45180049 is about 6721.6105956832. The cubic root of 45180049 is about 356.1630807134.

The spelling of 45180049 in words is "forty-five million, one hundred eighty thousand, forty-nine".