13102905 has 8 divisors (see below), whose sum is σ = 20964672. Its totient is φ = 6988208.

The previous prime is 13102891. The next prime is 13102907. The reversal of 13102905 is 50920131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13102905 - 2¹⁸ = 12840761 is a prime.

It is a super-2 number, since 2×13102905² = 343372238878050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13102907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436749 + ... + 436778.

It is an arithmetic number, because the mean of its divisors is an integer number (2620584).

Almost surely, 2^13102905 is an apocalyptic number.

13102905 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13102905 is a deficient number, since it is larger than the sum of its proper divisors (7861767).

13102905 is an equidigital number, since it uses as much as digits as its factorization.

13102905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873535.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 13102905 is about 3619.7935023976. The cubic root of 13102905 is about 235.7522596566.

The spelling of 13102905 in words is "thirteen million, one hundred two thousand, nine hundred five".