5578145 has 8 divisors (see below), whose sum is σ = 6803880. Its totient is φ = 4389120.

The previous prime is 5578141. The next prime is 5578151. The reversal of 5578145 is 5418755.

It can be written as a sum of positive squares in 4 ways, for example, as 667489 + 4910656 = 817^2 + 2216^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 5578145 - 2² = 5578141 is a prime.

It is a super-2 number, since 2×5578145² = 62231403282050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5578141) 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 7 ways as a sum of consecutive naturals, for example, 8840 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (850485).

Almost surely, 2^5578145 is an apocalyptic number.

It is an amenable number.

5578145 is a deficient number, since it is larger than the sum of its proper divisors (1225735).

5578145 is a wasteful number, since it uses less digits than its factorization.

5578145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18355.

The product of its digits is 28000, while the sum is 35.

The square root of 5578145 is about 2361.8096875066. The cubic root of 5578145 is about 177.3494855766.

The spelling of 5578145 in words is "five million, five hundred seventy-eight thousand, one hundred forty-five".