13880145 has 16 divisors (see below), whose sum is σ = 22522752. Its totient is φ = 7297920.

The previous prime is 13880101. The next prime is 13880149. The reversal of 13880145 is 54108831.

It is not a de Polignac number, because 13880145 - 2⁸ = 13879889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13880149) 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 15 ways as a sum of consecutive naturals, for example, 5452 + ... + 7581.

It is an arithmetic number, because the mean of its divisors is an integer number (1407672).

Almost surely, 2^13880145 is an apocalyptic number.

13880145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13880145 is a deficient number, since it is larger than the sum of its proper divisors (8642607).

13880145 is a wasteful number, since it uses less digits than its factorization.

13880145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112.

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 13880145 is about 3725.6066620082. The cubic root of 13880145 is about 240.3244743152.

Adding to 13880145 its reverse (54108831), we get a palindrome (67988976).

The spelling of 13880145 in words is "thirteen million, eight hundred eighty thousand, one hundred forty-five".