13131650 has 48 divisors (see below), whose sum is σ = 29569536. Its totient is φ = 4235520.

The previous prime is 13131649. The next prime is 13131661. The reversal of 13131650 is 5613131.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 4847 + ... + 7053.

It is an arithmetic number, because the mean of its divisors is an integer number (616032).

Almost surely, 2^13131650 is an apocalyptic number.

13131650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131650 is an abundant number, since it is smaller than the sum of its proper divisors (16437886).

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

13131650 is a wasteful number, since it uses less digits than its factorization.

13131650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2243 (or 2238 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

The square root of 13131650 is about 3623.7618575177. The cubic root of 13131650 is about 235.9245305942.

Adding to 13131650 its reverse (5613131), we get a palindrome (18744781).

The spelling of 13131650 in words is "thirteen million, one hundred thirty-one thousand, six hundred fifty".