13109850 has 144 divisors (see below), whose sum is σ = 39809952. Its totient is φ = 3188160.

The previous prime is 13109843. The next prime is 13109861. The reversal of 13109850 is 5890131.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 157909 + ... + 157991.

It is an arithmetic number, because the mean of its divisors is an integer number (276458).

Almost surely, 2^13109850 is an apocalyptic number.

13109850 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 13109850, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19904976).

13109850 is an abundant number, since it is smaller than the sum of its proper divisors (26700102).

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

13109850 is a wasteful number, since it uses less digits than its factorization.

13109850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123 (or 106 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 13109850 is about 3620.7526841805. The cubic root of 13109850 is about 235.7939046265.

Adding to 13109850 its reverse (5890131), we get a palindrome (18999981).

The spelling of 13109850 in words is "thirteen million, one hundred nine thousand, eight hundred fifty".