12919953 has 4 divisors (see below), whose sum is σ = 17226608. Its totient is φ = 8613300.

The previous prime is 12919931. The next prime is 12919957. The reversal of 12919953 is 35991921.

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 not a de Polignac number, because 12919953 - 2⁶ = 12919889 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12919957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153323 + ... + 2153328.

It is an arithmetic number, because the mean of its divisors is an integer number (4306652).

Almost surely, 2^12919953 is an apocalyptic number.

It is an amenable number.

12919953 is a deficient number, since it is larger than the sum of its proper divisors (4306655).

12919953 is an equidigital number, since it uses as much as digits as its factorization.

12919953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306654.

The product of its digits is 21870, while the sum is 39.

The square root of 12919953 is about 3594.4336132415. The cubic root of 12919953 is about 234.6498663919.

The spelling of 12919953 in words is "twelve million, nine hundred nineteen thousand, nine hundred fifty-three".