12945995 has 4 divisors (see below), whose sum is σ = 15535200. Its totient is φ = 10356792.

The previous prime is 12945983. The next prime is 12946001. The reversal of 12945995 is 59954921.

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

It is a cyclic number.

It is not a de Polignac number, because 12945995 - 2⁴ = 12945979 is a prime.

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 in 3 ways as a sum of consecutive naturals, for example, 1294595 + ... + 1294604.

It is an arithmetic number, because the mean of its divisors is an integer number (3883800).

Almost surely, 2^12945995 is an apocalyptic number.

12945995 is a deficient number, since it is larger than the sum of its proper divisors (2589205).

12945995 is an equidigital number, since it uses as much as digits as its factorization.

12945995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2589204.

The product of its digits is 145800, while the sum is 44.

The square root of 12945995 is about 3598.0543353318. The cubic root of 12945995 is about 234.8074172931.

The spelling of 12945995 in words is "twelve million, nine hundred forty-five thousand, nine hundred ninety-five".