11512973 has 2 divisors, whose sum is σ = 11512974. Its totient is φ = 11512972.

The previous prime is 11512937. The next prime is 11512981. The reversal of 11512973 is 37921511.

Together with previous prime (11512937) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10843849 + 669124 = 3293^2 + 818^2 .

It is a cyclic number.

It is not a de Polignac number, because 11512973 - 2⁸ = 11512717 is a prime.

It is equal to p₇₅₈₀₆₃ and since 11512973 and 758063 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11512933) 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, 5756486 + 5756487.

It is an arithmetic number, because the mean of its divisors is an integer number (5756487).

Almost surely, 2^11512973 is an apocalyptic number.

It is an amenable number.

11512973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11512973 is an equidigital number, since it uses as much as digits as its factorization.

11512973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1890, while the sum is 29.

The square root of 11512973 is about 3393.0772169227. The cubic root of 11512973 is about 225.8027163400.

The spelling of 11512973 in words is "eleven million, five hundred twelve thousand, nine hundred seventy-three".