13938146 has 8 divisors (see below), whose sum is σ = 21040860. Its totient is φ = 6924528.

The previous prime is 13938143. The next prime is 13938151. The reversal of 13938146 is 64183931.

It can be written as a sum of positive squares in 2 ways, for example, as 13359025 + 579121 = 3655^2 + 761^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13938143) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21881 + ... + 22508.

Almost surely, 2^13938146 is an apocalyptic number.

13938146 is a deficient number, since it is larger than the sum of its proper divisors (7102714).

13938146 is a wasteful number, since it uses less digits than its factorization.

13938146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44548.

The product of its digits is 15552, while the sum is 35.

The square root of 13938146 is about 3733.3826484838. The cubic root of 13938146 is about 240.6587573037.

The spelling of 13938146 in words is "thirteen million, nine hundred thirty-eight thousand, one hundred forty-six".