5121405 has 12 divisors (see below), whose sum is σ = 8877180. Its totient is φ = 2731392.

The previous prime is 5121383. The next prime is 5121419. The reversal of 5121405 is 5041215.

It can be written as a sum of positive squares in 2 ways, for example, as 1695204 + 3426201 = 1302^2 + 1851^2 .

It is not a de Polignac number, because 5121405 - 2¹⁴ = 5105021 is a prime.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 56860 + ... + 56949.

It is an arithmetic number, because the mean of its divisors is an integer number (739765).

Almost surely, 2^5121405 is an apocalyptic number.

It is an amenable number.

5121405 is a deficient number, since it is larger than the sum of its proper divisors (3755775).

5121405 is a wasteful number, since it uses less digits than its factorization.

5121405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113820 (or 113817 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 18.

The square root of 5121405 is about 2263.0521425721. The cubic root of 5121405 is about 172.3705392854.

The spelling of 5121405 in words is "five million, one hundred twenty-one thousand, four hundred five".