10212405 has 32 divisors (see below), whose sum is σ = 19660800. Its totient is φ = 4421952.

The previous prime is 10212373. The next prime is 10212421. The reversal of 10212405 is 50421201.

10212405 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10212405 - 2⁵ = 10212373 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 31 ways as a sum of consecutive naturals, for example, 565 + ... + 4554.

It is an arithmetic number, because the mean of its divisors is an integer number (614400).

Almost surely, 2^10212405 is an apocalyptic number.

10212405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

10212405 is a deficient number, since it is larger than the sum of its proper divisors (9448395).

10212405 is a wasteful number, since it uses less digits than its factorization.

10212405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153.

The product of its (nonzero) digits is 80, while the sum is 15.

The square root of 10212405 is about 3195.6853724984. The cubic root of 10212405 is about 216.9581704220.

Adding to 10212405 its reverse (50421201), we get a palindrome (60633606).

The spelling of 10212405 in words is "ten million, two hundred twelve thousand, four hundred five".