12949654 has 4 divisors (see below), whose sum is σ = 19424484. Its totient is φ = 6474826.

The previous prime is 12949639. The next prime is 12949679. The reversal of 12949654 is 45694921.

It is a semiprime because it is the product of two primes.

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 alternating number because its digits alternate between odd and even.

It is a congruent 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 as a sum of consecutive naturals, namely, 3237412 + ... + 3237415.

It is an arithmetic number, because the mean of its divisors is an integer number (4856121).

Almost surely, 2^12949654 is an apocalyptic number.

12949654 is a deficient number, since it is larger than the sum of its proper divisors (6474830).

12949654 is an equidigital number, since it uses as much as digits as its factorization.

12949654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6474829.

The product of its digits is 77760, while the sum is 40.

The square root of 12949654 is about 3598.5627686620. The cubic root of 12949654 is about 234.8295368600.

The spelling of 12949654 in words is "twelve million, nine hundred forty-nine thousand, six hundred fifty-four".