12959547 has 4 divisors (see below), whose sum is σ = 17279400. Its totient is φ = 8639696.

The previous prime is 12959543. The next prime is 12959561. The reversal of 12959547 is 74595921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74595921 = 3 ⋅24865307.

It is a cyclic number.

It is not a de Polignac number, because 12959547 - 2² = 12959543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12959499 and 12959508.

It is not an unprimeable number, because it can be changed into a prime (12959543) 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, 2159922 + ... + 2159927.

It is an arithmetic number, because the mean of its divisors is an integer number (4319850).

Almost surely, 2^12959547 is an apocalyptic number.

12959547 is a deficient number, since it is larger than the sum of its proper divisors (4319853).

12959547 is an equidigital number, since it uses as much as digits as its factorization.

12959547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4319852.

The product of its digits is 113400, while the sum is 42.

The square root of 12959547 is about 3599.9370827835. The cubic root of 12959547 is about 234.8893216558.

The spelling of 12959547 in words is "twelve million, nine hundred fifty-nine thousand, five hundred forty-seven".