13669155 has 20 divisors (see below), whose sum is σ = 24503952. Its totient is φ = 7290000.

The previous prime is 13669147. The next prime is 13669157. The reversal of 13669155 is 55196631.

It is not a de Polignac number, because 13669155 - 2³ = 13669147 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (13669157) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 16471 + ... + 17280.

Almost surely, 2^13669155 is an apocalyptic number.

13669155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13669155 is a deficient number, since it is larger than the sum of its proper divisors (10834797).

13669155 is an equidigital number, since it uses as much as digits as its factorization.

13669155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33768 (or 33759 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 13669155 is about 3697.1820350099. The cubic root of 13669155 is about 239.1005395063.

It can be divided in two parts, 13669 and 155, that added together give a cube (13824 = 24³).

The spelling of 13669155 in words is "thirteen million, six hundred sixty-nine thousand, one hundred fifty-five".