13109000 has 32 divisors (see below), whose sum is σ = 30677400. Its totient is φ = 5243200.

The previous prime is 13108987. The next prime is 13109003. The reversal of 13109000 is 90131.

It can be written as a sum of positive squares in 4 ways, for example, as 3161284 + 9947716 = 1778^2 + 3154^2 .

It is not an unprimeable number, because it can be changed into a prime (13109003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5555 + ... + 7554.

Almost surely, 2^13109000 is an apocalyptic number.

13109000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13109000 is an abundant number, since it is smaller than the sum of its proper divisors (17568400).

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

13109000 is a wasteful number, since it uses less digits than its factorization.

13109000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13130 (or 13116 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 13109000 is about 3620.6353033687. The cubic root of 13109000 is about 235.7888084800.

Adding to 13109000 its reverse (90131), we get a palindrome (13199131).

The spelling of 13109000 in words is "thirteen million, one hundred nine thousand".