13778148 has 24 divisors (see below), whose sum is σ = 32630752. Its totient is φ = 4523904.

The previous prime is 13778147. The next prime is 13778209. The reversal of 13778148 is 84187731.

13778148 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13778148³ (a number of 22 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13778147) 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, 7765 + ... + 9372.

Almost surely, 2^13778148 is an apocalyptic number.

It is an amenable number.

13778148 is an abundant number, since it is smaller than the sum of its proper divisors (18852604).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13778148 is a wasteful number, since it uses less digits than its factorization.

13778148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17211 (or 17209 counting only the distinct ones).

The product of its digits is 37632, while the sum is 39.

The square root of 13778148 is about 3711.8927786239. The cubic root of 13778148 is about 239.7343588645.

The spelling of 13778148 in words is "thirteen million, seven hundred seventy-eight thousand, one hundred forty-eight".