13731500 has 48 divisors (see below), whose sum is σ = 31056480. Its totient is φ = 5297600.

The previous prime is 13731499. The next prime is 13731511. The reversal of 13731500 is 513731.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

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 15 ways as a sum of consecutive naturals, for example, 14027 + ... + 14973.

It is an arithmetic number, because the mean of its divisors is an integer number (647010).

Almost surely, 2^13731500 is an apocalyptic number.

13731500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13731500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15528240).

13731500 is an abundant number, since it is smaller than the sum of its proper divisors (17324980).

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

13731500 is a wasteful number, since it uses less digits than its factorization.

13731500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 995 (or 983 counting only the distinct ones).

The product of its (nonzero) digits is 315, while the sum is 20.

The square root of 13731500 is about 3705.6038644194. The cubic root of 13731500 is about 239.4635006697.

The spelling of 13731500 in words is "thirteen million, seven hundred thirty-one thousand, five hundred".