605708545 has 16 divisors (see below), whose sum is σ = 784606032. Its totient is φ = 446238720.

The previous prime is 605708503. The next prime is 605708567. The reversal of 605708545 is 545807506.

It can be written as a sum of positive squares in 8 ways, for example, as 129072321 + 476636224 = 11361^2 + 21832^2 .

It is not a de Polignac number, because 605708545 - 2⁷ = 605708417 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 605708498 and 605708507.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17385 + ... + 38905.

It is an arithmetic number, because the mean of its divisors is an integer number (49037877).

Almost surely, 2^605708545 is an apocalyptic number.

605708545 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

605708545 is a deficient number, since it is larger than the sum of its proper divisors (178897487).

605708545 is a wasteful number, since it uses less digits than its factorization.

605708545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21972.

The product of its (nonzero) digits is 168000, while the sum is 40.

The square root of 605708545 is about 24611.1467632047. The cubic root of 605708545 is about 846.0991007948.

The spelling of 605708545 in words is "six hundred five million, seven hundred eight thousand, five hundred forty-five".