13890148 has 12 divisors (see below), whose sum is σ = 24641260. Its totient is φ = 6849792.

The previous prime is 13890143. The next prime is 13890157. The reversal of 13890148 is 84109831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7171684 + 6718464 = 2678^2 + 2592^2 .

It is a super-2 number, since 2×13890148² = 385872422923808, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13890143) 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, 23493 + ... + 24076.

Almost surely, 2^13890148 is an apocalyptic number.

It is an amenable number.

13890148 is a deficient number, since it is larger than the sum of its proper divisors (10751112).

13890148 is a wasteful number, since it uses less digits than its factorization.

13890148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47646 (or 47644 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 13890148 is about 3726.9488861534. The cubic root of 13890148 is about 240.3821919749.

Adding to 13890148 its reverse (84109831), we get a palindrome (97999979).

The spelling of 13890148 in words is "thirteen million, eight hundred ninety thousand, one hundred forty-eight".