13531104 has 48 divisors (see below), whose sum is σ = 39468240. Its totient is φ = 4510080.

The previous prime is 13531103. The next prime is 13531123. The reversal of 13531104 is 40113531.

It is a tau number, because it is divible by the number of its divisors (48).

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 (13531103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6967 + ... + 8694.

It is an arithmetic number, because the mean of its divisors is an integer number (822255).

Almost surely, 2^13531104 is an apocalyptic number.

It is an amenable number.

13531104 is an abundant number, since it is smaller than the sum of its proper divisors (25937136).

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

13531104 is a wasteful number, since it uses less digits than its factorization.

13531104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15680 (or 15666 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 13531104 is about 3678.4648972092. The cubic root of 13531104 is about 238.2928861328.

Adding to 13531104 its reverse (40113531), we get a palindrome (53644635).

The spelling of 13531104 in words is "thirteen million, five hundred thirty-one thousand, one hundred four".