13146656 has 12 divisors (see below), whose sum is σ = 25882542. Its totient is φ = 6573312.

The previous prime is 13146649. The next prime is 13146671. The reversal of 13146656 is 65664131.

It can be written as a sum of positive squares in only one way, i.e., 11971600 + 1175056 = 3460^2 + 1084^2 .

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 410833 = 13146656 / (1 + 3 + 1 + 4 + 6 + 6 + 5 + 6).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205385 + ... + 205448.

Almost surely, 2^13146656 is an apocalyptic number.

13146656 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

13146656 is a deficient number, since it is larger than the sum of its proper divisors (12735886).

13146656 is an equidigital number, since it uses as much as digits as its factorization.

13146656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410843 (or 410835 counting only the distinct ones).

The product of its digits is 12960, while the sum is 32.

The square root of 13146656 is about 3625.8317666433. The cubic root of 13146656 is about 236.0143628145.

The spelling of 13146656 in words is "thirteen million, one hundred forty-six thousand, six hundred fifty-six".