5171445 has 30 divisors (see below), whose sum is σ = 9353058. Its totient is φ = 2733696.

The previous prime is 5171437. The next prime is 5171449. The reversal of 5171445 is 5441715.

It is a happy number.

5171445 is a `hidden beast` number, since 517 + 144 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 544644 + 4626801 = 738^2 + 2151^2 .

It is not a de Polignac number, because 5171445 - 2³ = 5171437 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5171449) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 45709 + ... + 45821.

Almost surely, 2^5171445 is an apocalyptic number.

It is an amenable number.

5171445 is a deficient number, since it is larger than the sum of its proper divisors (4181613).

5171445 is an equidigital number, since it uses as much as digits as its factorization.

5171445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243 (or 121 counting only the distinct ones).

The product of its digits is 2800, while the sum is 27.

The square root of 5171445 is about 2274.0811331173. The cubic root of 5171445 is about 172.9301175646.

The spelling of 5171445 in words is "five million, one hundred seventy-one thousand, four hundred forty-five".