5161021 has 8 divisors (see below), whose sum is σ = 5279040. Its totient is φ = 5044512.

The previous prime is 5161003. The next prime is 5161031. The reversal of 5161021 is 1201615.

It is a happy number.

5161021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5161021 - 2⁷ = 5160893 is a prime.

It is a super-2 number, since 2×5161021² = 53272275524882, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5160986 and 5161004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5161031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8886 + ... + 9448.

It is an arithmetic number, because the mean of its divisors is an integer number (659880).

Almost surely, 2^5161021 is an apocalyptic number.

It is an amenable number.

5161021 is a deficient number, since it is larger than the sum of its proper divisors (118019).

5161021 is a wasteful number, since it uses less digits than its factorization.

5161021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 5161021 is about 2271.7880622981. The cubic root of 5161021 is about 172.8138485736.

Adding to 5161021 its reverse (1201615), we get a palindrome (6362636).

The spelling of 5161021 in words is "five million, one hundred sixty-one thousand, twenty-one".