13720148 has 12 divisors (see below), whose sum is σ = 25857300. Its totient is φ = 6332352.

The previous prime is 13720129. The next prime is 13720159. The reversal of 13720148 is 84102731.

It can be written as a sum of positive squares in 2 ways, for example, as 2617924 + 11102224 = 1618^2 + 3332^2 .

It is a super-2 number, since 2×13720148² = 376484922283808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131873 + ... + 131976.

It is an arithmetic number, because the mean of its divisors is an integer number (2154775).

Almost surely, 2^13720148 is an apocalyptic number.

It is an amenable number.

13720148 is a deficient number, since it is larger than the sum of its proper divisors (12137152).

13720148 is a wasteful number, since it uses less digits than its factorization.

13720148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263866 (or 263864 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 13720148 is about 3704.0718135587. The cubic root of 13720148 is about 239.3974933359.

Adding to 13720148 its reverse (84102731), we get a palindrome (97822879).

The spelling of 13720148 in words is "thirteen million, seven hundred twenty thousand, one hundred forty-eight".