12986554 has 32 divisors (see below), whose sum is σ = 22974336. Its totient is φ = 5391360.

The previous prime is 12986527. The next prime is 12986563. The reversal of 12986554 is 45568921.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax 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 15 ways as a sum of consecutive naturals, for example, 99069 + ... + 99199.

It is an arithmetic number, because the mean of its divisors is an integer number (717948).

Almost surely, 2^12986554 is an apocalyptic number.

12986554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12986554 is a deficient number, since it is larger than the sum of its proper divisors (9987782).

12986554 is a wasteful number, since it uses less digits than its factorization.

12986554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310.

The product of its digits is 86400, while the sum is 40.

The square root of 12986554 is about 3603.6861683560. The cubic root of 12986554 is about 235.0523740215.

The spelling of 12986554 in words is "twelve million, nine hundred eighty-six thousand, five hundred fifty-four".