5161842 has 48 divisors (see below), whose sum is σ = 12984192. Its totient is φ = 1451520.

The previous prime is 5161837. The next prime is 5161843. The reversal of 5161842 is 2481615.

5161842 is a `hidden beast` number, since 5 + 1 + 618 + 42 = 666.

It is a super-2 number, since 2×5161842² = 53289225665928, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (5161843) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8658 + ... + 9234.

It is an arithmetic number, because the mean of its divisors is an integer number (270504).

Almost surely, 2^5161842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5161842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6492096).

5161842 is an abundant number, since it is smaller than the sum of its proper divisors (7822350).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5161842 is a wasteful number, since it uses less digits than its factorization.

5161842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663 (or 660 counting only the distinct ones).

The product of its digits is 1920, while the sum is 27.

The square root of 5161842 is about 2271.9687497851. The cubic root of 5161842 is about 172.8230116602.

The spelling of 5161842 in words is "five million, one hundred sixty-one thousand, eight hundred forty-two".