11919361 has 2 divisors, whose sum is σ = 11919362. Its totient is φ = 11919360.

The previous prime is 11919311. The next prime is 11919371. The reversal of 11919361 is 16391911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10080625 + 1838736 = 3175^2 + 1356^2 .

It is a cyclic number.

It is not a de Polignac number, because 11919361 - 2¹⁵ = 11886593 is a prime.

It is not a weakly prime, because it can be changed into another prime (11919301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5959680 + 5959681.

It is an arithmetic number, because the mean of its divisors is an integer number (5959681).

It is a Proth number, since it is equal to 1455 ⋅ 2¹³ + 1 and 1455 < 2¹³.

Almost surely, 2^11919361 is an apocalyptic number.

It is an amenable number.

11919361 is a deficient number, since it is larger than the sum of its proper divisors (1).

11919361 is an equidigital number, since it uses as much as digits as its factorization.

11919361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1458, while the sum is 31.

The square root of 11919361 is about 3452.4427583959. The cubic root of 11919361 is about 228.4288698666.

The spelling of 11919361 in words is "eleven million, nine hundred nineteen thousand, three hundred sixty-one".