13630155 has 32 divisors (see below), whose sum is σ = 27191808. Its totient is φ = 5664000.

The previous prime is 13630139. The next prime is 13630159. The reversal of 13630155 is 55103631.

It is not a de Polignac number, because 13630155 - 2⁴ = 13630139 is a prime.

It is a super-2 number, since 2×13630155² = 371562250648050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13630159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4746 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (849744).

Almost surely, 2^13630155 is an apocalyptic number.

13630155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13630155 is a deficient number, since it is larger than the sum of its proper divisors (13561653).

13630155 is a wasteful number, since it uses less digits than its factorization.

13630155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11827.

The product of its (nonzero) digits is 1350, while the sum is 24.

The square root of 13630155 is about 3691.9039803332. The cubic root of 13630155 is about 238.8729272031.

Adding to 13630155 its reverse (55103631), we get a palindrome (68733786).

The spelling of 13630155 in words is "thirteen million, six hundred thirty thousand, one hundred fifty-five".