12961934 has 4 divisors (see below), whose sum is σ = 19442904. Its totient is φ = 6480966.

The previous prime is 12961931. The next prime is 12961943. The reversal of 12961934 is 43916921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43916921 = 101 ⋅434821.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12961894 and 12961903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12961931) 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 as a sum of consecutive naturals, namely, 3240482 + ... + 3240485.

It is an arithmetic number, because the mean of its divisors is an integer number (4860726).

Almost surely, 2^12961934 is an apocalyptic number.

12961934 is a deficient number, since it is larger than the sum of its proper divisors (6480970).

12961934 is an equidigital number, since it uses as much as digits as its factorization.

12961934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6480969.

The product of its digits is 11664, while the sum is 35.

The square root of 12961934 is about 3600.2686010908. The cubic root of 12961934 is about 234.9037420773.

The spelling of 12961934 in words is "twelve million, nine hundred sixty-one thousand, nine hundred thirty-four".