13263155 has 8 divisors (see below), whose sum is σ = 16140384. Its totient is φ = 10460800.

The previous prime is 13263143. The next prime is 13263167. The reversal of 13263155 is 55136231.

13263155 = T₂₄₁ + T₂₄₂ + ... + T₄₅₃.

It is an interprime number because it is at equal distance from previous prime (13263143) and next prime (13263167).

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

It is not a de Polignac number, because 13263155 - 2⁴ = 13263139 is a prime.

It is a super-2 number, since 2×13263155² = 351822561108050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18326 + ... + 19035.

It is an arithmetic number, because the mean of its divisors is an integer number (2017548).

Almost surely, 2^13263155 is an apocalyptic number.

13263155 is a deficient number, since it is larger than the sum of its proper divisors (2877229).

13263155 is an equidigital number, since it uses as much as digits as its factorization.

13263155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37437.

The product of its digits is 2700, while the sum is 26.

The square root of 13263155 is about 3641.8614745759. The cubic root of 13263155 is about 236.7094601803.

Adding to 13263155 its reverse (55136231), we get a palindrome (68399386).

The spelling of 13263155 in words is "thirteen million, two hundred sixty-three thousand, one hundred fifty-five".