5165945 has 4 divisors (see below), whose sum is σ = 6199140. Its totient is φ = 4132752.

The previous prime is 5165939. The next prime is 5165947. The reversal of 5165945 is 5495615.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1371241 + 3794704 = 1171^2 + 1948^2 .

It is a cyclic number.

It is not a de Polignac number, because 5165945 - 2⁸ = 5165689 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5165947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516590 + ... + 516599.

It is an arithmetic number, because the mean of its divisors is an integer number (1549785).

Almost surely, 2^5165945 is an apocalyptic number.

It is an amenable number.

5165945 is a deficient number, since it is larger than the sum of its proper divisors (1033195).

5165945 is a wasteful number, since it uses less digits than its factorization.

5165945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1033194.

The product of its digits is 27000, while the sum is 35.

The square root of 5165945 is about 2272.8715317853. The cubic root of 5165945 is about 172.8687902163.

The spelling of 5165945 in words is "five million, one hundred sixty-five thousand, nine hundred forty-five".