11959601 has 2 divisors, whose sum is σ = 11959602. Its totient is φ = 11959600.

The previous prime is 11959579. The next prime is 11959603. The reversal of 11959601 is 10695911.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9150625 + 2808976 = 3025^2 + 1676^2 .

It is a cyclic number.

It is not a de Polignac number, because 11959601 - 2¹⁰ = 11958577 is a prime.

Together with 11959603, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₇₈₅₆₀₆ and since 11959601 and 785606 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11959603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5979800 + 5979801.

It is an arithmetic number, because the mean of its divisors is an integer number (5979801).

Almost surely, 2^11959601 is an apocalyptic number.

It is an amenable number.

11959601 is a deficient number, since it is larger than the sum of its proper divisors (1).

11959601 is an equidigital number, since it uses as much as digits as its factorization.

11959601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2430, while the sum is 32.

The square root of 11959601 is about 3458.2656057625. The cubic root of 11959601 is about 228.6856412651.

The spelling of 11959601 in words is "eleven million, nine hundred fifty-nine thousand, six hundred one".