5161397 has 4 divisors (see below), whose sum is σ = 5174796. Its totient is φ = 5148000.

The previous prime is 5161381. The next prime is 5161411. The reversal of 5161397 is 7931615.

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 1343281 + 3818116 = 1159^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 5161397 - 2⁴ = 5161381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161327) 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, 6104 + ... + 6897.

It is an arithmetic number, because the mean of its divisors is an integer number (1293699).

Almost surely, 2^5161397 is an apocalyptic number.

It is an amenable number.

5161397 is a deficient number, since it is larger than the sum of its proper divisors (13399).

5161397 is a wasteful number, since it uses less digits than its factorization.

5161397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13398.

The product of its digits is 5670, while the sum is 32.

The square root of 5161397 is about 2271.8708149893. The cubic root of 5161397 is about 172.8180451870.

The spelling of 5161397 in words is "five million, one hundred sixty-one thousand, three hundred ninety-seven".