11913953 has 2 divisors, whose sum is σ = 11913954. Its totient is φ = 11913952.

The previous prime is 11913899. The next prime is 11913959. The reversal of 11913953 is 35931911.

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., 8196769 + 3717184 = 2863^2 + 1928^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11913953 is a prime.

It is not a weakly prime, because it can be changed into another prime (11913959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5956976 + 5956977.

It is an arithmetic number, because the mean of its divisors is an integer number (5956977).

Almost surely, 2^11913953 is an apocalyptic number.

It is an amenable number.

11913953 is a deficient number, since it is larger than the sum of its proper divisors (1).

11913953 is an equidigital number, since it uses as much as digits as its factorization.

11913953 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3645, while the sum is 32.

The square root of 11913953 is about 3451.6594559719. The cubic root of 11913953 is about 228.3943173933.

The spelling of 11913953 in words is "eleven million, nine hundred thirteen thousand, nine hundred fifty-three".