12954397 has 4 divisors (see below), whose sum is σ = 12961756. Its totient is φ = 12947040.

The previous prime is 12954379. The next prime is 12954407. The reversal of 12954397 is 79345921.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 10310521 + 2643876 = 3211^2 + 1626^2 .

It is a cyclic number.

It is not a de Polignac number, because 12954397 - 2⁷ = 12954269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12954367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697 + ... + 5137.

It is an arithmetic number, because the mean of its divisors is an integer number (3240439).

Almost surely, 2^12954397 is an apocalyptic number.

It is an amenable number.

12954397 is a deficient number, since it is larger than the sum of its proper divisors (7359).

12954397 is an equidigital number, since it uses as much as digits as its factorization.

12954397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7358.

The product of its digits is 68040, while the sum is 40.

The square root of 12954397 is about 3599.2217214281. The cubic root of 12954397 is about 234.8582032769.

The spelling of 12954397 in words is "twelve million, nine hundred fifty-four thousand, three hundred ninety-seven".