13531230 has 96 divisors (see below), whose sum is σ = 38132640. Its totient is φ = 3317760.

The previous prime is 13531229. The next prime is 13531277. The reversal of 13531230 is 3213531.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70014 + ... + 70206.

It is an arithmetic number, because the mean of its divisors is an integer number (397215).

Almost surely, 2^13531230 is an apocalyptic number.

13531230 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 13531230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19066320).

13531230 is an abundant number, since it is smaller than the sum of its proper divisors (24601410).

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

13531230 is a wasteful number, since it uses less digits than its factorization.

13531230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 13531230 is about 3678.4820238789. The cubic root of 13531230 is about 238.2936257820.

Adding to 13531230 its reverse (3213531), we get a palindrome (16744761).

The spelling of 13531230 in words is "thirteen million, five hundred thirty-one thousand, two hundred thirty".