13229655 has 32 divisors (see below), whose sum is σ = 23198400. Its totient is φ = 6408192.

The previous prime is 13229651. The next prime is 13229659. The reversal of 13229655 is 55692231.

It is an interprime number because it is at equal distance from previous prime (13229651) and next prime (13229659).

It is not a de Polignac number, because 13229655 - 2² = 13229651 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13229651) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6501 + ... + 8289.

It is an arithmetic number, because the mean of its divisors is an integer number (724950).

Almost surely, 2^13229655 is an apocalyptic number.

13229655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13229655 is a deficient number, since it is larger than the sum of its proper divisors (9968745).

13229655 is a wasteful number, since it uses less digits than its factorization.

13229655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1843.

The product of its digits is 16200, while the sum is 33.

The square root of 13229655 is about 3637.2592703848. The cubic root of 13229655 is about 236.5099990260.

The spelling of 13229655 in words is "thirteen million, two hundred twenty-nine thousand, six hundred fifty-five".