13149563 has 8 divisors (see below), whose sum is σ = 15234528. Its totient is φ = 11116224.

The previous prime is 13149523. The next prime is 13149571. The reversal of 13149563 is 36594131.

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

It is not a de Polignac number, because 13149563 - 2¹⁰ = 13148539 is a prime.

It is a super-2 number, since 2×13149563² = 345822014181938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13149523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12356 + ... + 13377.

It is an arithmetic number, because the mean of its divisors is an integer number (1904316).

Almost surely, 2^13149563 is an apocalyptic number.

13149563 is a deficient number, since it is larger than the sum of its proper divisors (2084965).

13149563 is an equidigital number, since it uses as much as digits as its factorization.

13149563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25813.

The product of its digits is 9720, while the sum is 32.

The square root of 13149563 is about 3626.2326180211. The cubic root of 13149563 is about 236.0317574328.

It can be divided in two parts, 131 and 49563, that added together give a palindrome (49694).

The spelling of 13149563 in words is "thirteen million, one hundred forty-nine thousand, five hundred sixty-three".