5161605 has 16 divisors (see below), whose sum is σ = 8342784. Its totient is φ = 2724800.

The previous prime is 5161579. The next prime is 5161609. The reversal of 5161605 is 5061615.

It is not a de Polignac number, because 5161605 - 2⁸ = 5161349 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161609) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189 + ... + 3218.

It is an arithmetic number, because the mean of its divisors is an integer number (521424).

Almost surely, 2^5161605 is an apocalyptic number.

It is an amenable number.

5161605 is a deficient number, since it is larger than the sum of its proper divisors (3181179).

5161605 is a wasteful number, since it uses less digits than its factorization.

5161605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3516.

The product of its (nonzero) digits is 900, while the sum is 24.

The square root of 5161605 is about 2271.9165917788. The cubic root of 5161605 is about 172.8203666302.

The spelling of 5161605 in words is "five million, one hundred sixty-one thousand, six hundred five".