12949953 has 4 divisors (see below), whose sum is σ = 17266608. Its totient is φ = 8633300.

The previous prime is 12949949. The next prime is 12949987. The reversal of 12949953 is 35994921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12949953 - 2² = 12949949 is a prime.

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, 2158323 + ... + 2158328.

It is an arithmetic number, because the mean of its divisors is an integer number (4316652).

Almost surely, 2^12949953 is an apocalyptic number.

It is an amenable number.

12949953 is a deficient number, since it is larger than the sum of its proper divisors (4316655).

12949953 is an equidigital number, since it uses as much as digits as its factorization.

12949953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4316654.

The product of its digits is 87480, while the sum is 42.

The square root of 12949953 is about 3598.6043127857. The cubic root of 12949953 is about 234.8313442054.

The spelling of 12949953 in words is "twelve million, nine hundred forty-nine thousand, nine hundred fifty-three".