12949455 has 16 divisors (see below), whose sum is σ = 20771424. Its totient is φ = 6888960.

The previous prime is 12949439. The next prime is 12949463. The reversal of 12949455 is 55494921.

It is not a de Polignac number, because 12949455 - 2⁴ = 12949439 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6987 + ... + 8643.

It is an arithmetic number, because the mean of its divisors is an integer number (1298214).

Almost surely, 2^12949455 is an apocalyptic number.

12949455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12949455 is a deficient number, since it is larger than the sum of its proper divisors (7821969).

12949455 is a wasteful number, since it uses less digits than its factorization.

12949455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2186.

The product of its digits is 64800, while the sum is 39.

The square root of 12949455 is about 3598.5351186281. The cubic root of 12949455 is about 234.8283339626.

The spelling of 12949455 in words is "twelve million, nine hundred forty-nine thousand, four hundred fifty-five".