11921753 has 2 divisors, whose sum is σ = 11921754. Its totient is φ = 11921752.

The previous prime is 11921729. The next prime is 11921761. The reversal of 11921753 is 35712911.

11921753 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11751184 + 170569 = 3428^2 + 413^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11921753 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (11921713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5960876 + 5960877.

It is an arithmetic number, because the mean of its divisors is an integer number (5960877).

Almost surely, 2^11921753 is an apocalyptic number.

It is an amenable number.

11921753 is a deficient number, since it is larger than the sum of its proper divisors (1).

11921753 is an equidigital number, since it uses as much as digits as its factorization.

11921753 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 11921753 is about 3452.7891624019. The cubic root of 11921753 is about 228.4441493577. Note that the first 3 decimals are identical.

The spelling of 11921753 in words is "eleven million, nine hundred twenty-one thousand, seven hundred fifty-three".