13256630 has 8 divisors (see below), whose sum is σ = 23861952. Its totient is φ = 5302648.

The previous prime is 13256597. The next prime is 13256647. The reversal of 13256630 is 3665231.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 13256630.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 662822 + ... + 662841.

It is an arithmetic number, because the mean of its divisors is an integer number (2982744).

Almost surely, 2^13256630 is an apocalyptic number.

13256630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13256630 is a deficient number, since it is larger than the sum of its proper divisors (10605322).

13256630 is a wasteful number, since it uses less digits than its factorization.

13256630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325670.

The product of its (nonzero) digits is 3240, while the sum is 26.

The square root of 13256630 is about 3640.9655312842. The cubic root of 13256630 is about 236.6706362710.

The spelling of 13256630 in words is "thirteen million, two hundred fifty-six thousand, six hundred thirty".