605578545 has 192 divisors, whose sum is σ = 1349222400. Its totient is φ = 254741760.

The previous prime is 605578513. The next prime is 605578549. The reversal of 605578545 is 545875506.

It is not a de Polignac number, because 605578545 - 2⁵ = 605578513 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 605578545.

It is not an unprimeable number, because it can be changed into a prime (605578549) 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 191 ways as a sum of consecutive naturals, for example, 4768272 + ... + 4768398.

It is an arithmetic number, because the mean of its divisors is an integer number (7027200).

Almost surely, 2^605578545 is an apocalyptic number.

605578545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

605578545 is an abundant number, since it is smaller than the sum of its proper divisors (743643855).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

605578545 is a wasteful number, since it uses less digits than its factorization.

605578545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 178 counting only the distinct ones).

The product of its (nonzero) digits is 840000, while the sum is 45.

The square root of 605578545 is about 24608.5055417837. The cubic root of 605578545 is about 846.0385652155.

The spelling of 605578545 in words is "six hundred five million, five hundred seventy-eight thousand, five hundred forty-five".