13540230 has 128 divisors (see below), whose sum is σ = 40642560. Its totient is φ = 3179520.

The previous prime is 13540229. The next prime is 13540237. The reversal of 13540230 is 3204531.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13540237) 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 63 ways as a sum of consecutive naturals, for example, 139542 + ... + 139638.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^13540230 is an apocalyptic number.

13540230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13540230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20321280).

13540230 is an abundant number, since it is smaller than the sum of its proper divisors (27102330).

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

13540230 is a wasteful number, since it uses less digits than its factorization.

13540230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 165 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 13540230 is about 3679.7051512315. The cubic root of 13540230 is about 238.3464459942.

Adding to 13540230 its reverse (3204531), we get a palindrome (16744761).

The spelling of 13540230 in words is "thirteen million, five hundred forty thousand, two hundred thirty".