13561628 has 12 divisors (see below), whose sum is σ = 24764880. Its totient is φ = 6485952.

The previous prime is 13561621. The next prime is 13561657. The reversal of 13561628 is 82616531.

It is a happy number.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 13561594 and 13561603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13561621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73613 + ... + 73796.

It is an arithmetic number, because the mean of its divisors is an integer number (2063740).

Almost surely, 2^13561628 is an apocalyptic number.

It is an amenable number.

13561628 is a deficient number, since it is larger than the sum of its proper divisors (11203252).

13561628 is a wasteful number, since it uses less digits than its factorization.

13561628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147436 (or 147434 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 13561628 is about 3682.6115733267. The cubic root of 13561628 is about 238.4719350733.

The spelling of 13561628 in words is "thirteen million, five hundred sixty-one thousand, six hundred twenty-eight".