13912205 has 8 divisors (see below), whose sum is σ = 17676792. Its totient is φ = 10475008.

The previous prime is 13912201. The next prime is 13912231. The reversal of 13912205 is 50221931.

It can be written as a sum of positive squares in 4 ways, for example, as 1394761 + 12517444 = 1181^2 + 3538^2 .

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 13912205 - 2² = 13912201 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13912201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81752 + ... + 81921.

It is an arithmetic number, because the mean of its divisors is an integer number (2209599).

Almost surely, 2^13912205 is an apocalyptic number.

It is an amenable number.

13912205 is a deficient number, since it is larger than the sum of its proper divisors (3764587).

13912205 is a wasteful number, since it uses less digits than its factorization.

13912205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163695.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 13912205 is about 3729.9068352976. The cubic root of 13912205 is about 240.5093637893.

The spelling of 13912205 in words is "thirteen million, nine hundred twelve thousand, two hundred five".