12949558 has 8 divisors (see below), whose sum is σ = 19440720. Its totient is φ = 6469320.

The previous prime is 12949553. The next prime is 12949571. The reversal of 12949558 is 85594921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12949553) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1623 + ... + 5341.

It is an arithmetic number, because the mean of its divisors is an integer number (2430090).

Almost surely, 2^12949558 is an apocalyptic number.

12949558 is a deficient number, since it is larger than the sum of its proper divisors (6491162).

12949558 is a wasteful number, since it uses less digits than its factorization.

12949558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5462.

The product of its digits is 129600, while the sum is 43.

The square root of 12949558 is about 3598.5494299787. The cubic root of 12949558 is about 234.8289565693.

The spelling of 12949558 in words is "twelve million, nine hundred forty-nine thousand, five hundred fifty-eight".