5121641 has 16 divisors (see below), whose sum is σ = 6257664. Its totient is φ = 4091904.

The previous prime is 5121631. The next prime is 5121643. The reversal of 5121641 is 1461215.

5121641 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5121641 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5121643) 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 15 ways as a sum of consecutive naturals, for example, 22856 + ... + 23078.

It is an arithmetic number, because the mean of its divisors is an integer number (391104).

Almost surely, 2^5121641 is an apocalyptic number.

It is an amenable number.

5121641 is a deficient number, since it is larger than the sum of its proper divisors (1136023).

5121641 is a wasteful number, since it uses less digits than its factorization.

5121641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440.

The product of its digits is 240, while the sum is 20.

The square root of 5121641 is about 2263.1042839427. The cubic root of 5121641 is about 172.3731869196.

Adding to 5121641 its reverse (1461215), we get a palindrome (6582856).

The spelling of 5121641 in words is "five million, one hundred twenty-one thousand, six hundred forty-one".