11934581 has 2 divisors, whose sum is σ = 11934582. Its totient is φ = 11934580.

The previous prime is 11934563. The next prime is 11934599. The reversal of 11934581 is 18543911.

It is a balanced prime because it is at equal distance from previous prime (11934563) and next prime (11934599).

It can be written as a sum of positive squares in only one way, i.e., 11115556 + 819025 = 3334^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 11934581 - 2¹⁰ = 11933557 is a prime.

It is a super-2 number, since 2×11934581² = 284868447291122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11934511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5967290 + 5967291.

It is an arithmetic number, because the mean of its divisors is an integer number (5967291).

Almost surely, 2^11934581 is an apocalyptic number.

It is an amenable number.

11934581 is a deficient number, since it is larger than the sum of its proper divisors (1).

11934581 is an equidigital number, since it uses as much as digits as its factorization.

11934581 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 32.

The square root of 11934581 is about 3454.6462915905. The cubic root of 11934581 is about 228.5260565261.

The spelling of 11934581 in words is "eleven million, nine hundred thirty-four thousand, five hundred eighty-one".