5205945 has 8 divisors (see below), whose sum is σ = 8329536. Its totient is φ = 2776496.

The previous prime is 5205931. The next prime is 5205953. The reversal of 5205945 is 5495025.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 5205945 - 2⁵ = 5205913 is a prime.

5205945 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 173517 + ... + 173546.

It is an arithmetic number, because the mean of its divisors is an integer number (1041192).

Almost surely, 2^5205945 is an apocalyptic number.

It is an amenable number.

5205945 is a deficient number, since it is larger than the sum of its proper divisors (3123591).

5205945 is a wasteful number, since it uses less digits than its factorization.

5205945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347071.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 5205945 is about 2281.6540053216. The cubic root of 5205945 is about 173.3138188912.

The spelling of 5205945 in words is "five million, two hundred five thousand, nine hundred forty-five".