13100240 has 20 divisors (see below), whose sum is σ = 30458244. Its totient is φ = 5240064.

The previous prime is 13100239. The next prime is 13100249. The reversal of 13100240 is 4200131.

It is a happy number.

13100240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2808976 + 10291264 = 1676^2 + 3208^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13100249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81797 + ... + 81956.

Almost surely, 2^13100240 is an apocalyptic number.

13100240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13100240 is an abundant number, since it is smaller than the sum of its proper divisors (17358004).

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

13100240 is a wasteful number, since it uses less digits than its factorization.

13100240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163766 (or 163760 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 13100240 is about 3619.4253687568. The cubic root of 13100240 is about 235.7362753546.

Adding to 13100240 its reverse (4200131), we get a palindrome (17300371).

The spelling of 13100240 in words is "thirteen million, one hundred thousand, two hundred forty".