5161647 has 4 divisors (see below), whose sum is σ = 6882200. Its totient is φ = 3441096.

The previous prime is 5161643. The next prime is 5161669. The reversal of 5161647 is 7461615.

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

It is not a de Polignac number, because 5161647 - 2² = 5161643 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 860272 + ... + 860277.

It is an arithmetic number, because the mean of its divisors is an integer number (1720550).

Almost surely, 2^5161647 is an apocalyptic number.

5161647 is a deficient number, since it is larger than the sum of its proper divisors (1720553).

5161647 is a wasteful number, since it uses less digits than its factorization.

5161647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1720552.

The product of its digits is 5040, while the sum is 30.

The square root of 5161647 is about 2271.9258350571. The cubic root of 5161647 is about 172.8208353756.

Subtracting 5161647 from its reverse (7461615), we obtain a cube (2299968 = 132³).

The spelling of 5161647 in words is "five million, one hundred sixty-one thousand, six hundred forty-seven".