12944537 has 2 divisors, whose sum is σ = 12944538. Its totient is φ = 12944536.

The previous prime is 12944509. The next prime is 12944551. The reversal of 12944537 is 73544921.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8737936 + 4206601 = 2956^2 + 2051^2 .

It is a cyclic number.

It is not a de Polignac number, because 12944537 - 2⁶ = 12944473 is a prime.

It is a super-2 number, since 2×12944537² = 335122076288738, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12944497 and 12944506.

It is not a weakly prime, because it can be changed into another prime (12944557) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6472268 + 6472269.

It is an arithmetic number, because the mean of its divisors is an integer number (6472269).

Almost surely, 2^12944537 is an apocalyptic number.

It is an amenable number.

12944537 is a deficient number, since it is larger than the sum of its proper divisors (1).

12944537 is an equidigital number, since it uses as much as digits as its factorization.

12944537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30240, while the sum is 35.

The square root of 12944537 is about 3597.8517201241. The cubic root of 12944537 is about 234.7986021584.

The spelling of 12944537 in words is "twelve million, nine hundred forty-four thousand, five hundred thirty-seven".