45177409 has 4 divisors (see below), whose sum is σ = 45291604. Its totient is φ = 45063216.

The previous prime is 45177397. The next prime is 45177427. The reversal of 45177409 is 90477154.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19775809 + 25401600 = 4447^2 + 5040^2 .

It is a cyclic number.

It is not a de Polignac number, because 45177409 - 2⁹ = 45176897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (45177469) 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, 56502 + ... + 57295.

It is an arithmetic number, because the mean of its divisors is an integer number (11322901).

Almost surely, 2^45177409 is an apocalyptic number.

It is an amenable number.

45177409 is a deficient number, since it is larger than the sum of its proper divisors (114195).

45177409 is a wasteful number, since it uses less digits than its factorization.

45177409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114194.

The product of its (nonzero) digits is 35280, while the sum is 37.

The square root of 45177409 is about 6721.4142113100. The cubic root of 45177409 is about 356.1561433677.

The spelling of 45177409 in words is "forty-five million, one hundred seventy-seven thousand, four hundred nine".