13109655 has 64 divisors (see below), whose sum is σ = 24514560. Its totient is φ = 5930496.

The previous prime is 13109651. The next prime is 13109659. The reversal of 13109655 is 55690131.

It is an interprime number because it is at equal distance from previous prime (13109651) and next prime (13109659).

It is not a de Polignac number, because 13109655 - 2² = 13109651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13109651) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 165906 + ... + 165984.

It is an arithmetic number, because the mean of its divisors is an integer number (383040).

Almost surely, 2^13109655 is an apocalyptic number.

13109655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13109655 is a deficient number, since it is larger than the sum of its proper divisors (11404905).

13109655 is a wasteful number, since it uses less digits than its factorization.

13109655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 4050, while the sum is 30.

The square root of 13109655 is about 3620.7257559777. The cubic root of 13109655 is about 235.7927355300.

Adding to 13109655 its reverse (55690131), we get a palindrome (68799786).

The spelling of 13109655 in words is "thirteen million, one hundred nine thousand, six hundred fifty-five".