13128562 has 32 divisors (see below), whose sum is σ = 21450240. Its totient is φ = 6013440.

The previous prime is 13128559. The next prime is 13128571. The reversal of 13128562 is 26582131.

It is a self number, because there is not a number n which added to its sum of digits gives 13128562.

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 15 ways as a sum of consecutive naturals, for example, 135298 + ... + 135394.

It is an arithmetic number, because the mean of its divisors is an integer number (670320).

Almost surely, 2^13128562 is an apocalyptic number.

13128562 is a deficient number, since it is larger than the sum of its proper divisors (8321678).

13128562 is a wasteful number, since it uses less digits than its factorization.

13128562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226.

The product of its digits is 2880, while the sum is 28.

The square root of 13128562 is about 3623.3357559023. The cubic root of 13128562 is about 235.9060360393.

The spelling of 13128562 in words is "thirteen million, one hundred twenty-eight thousand, five hundred sixty-two".