11929091 has 2 divisors, whose sum is σ = 11929092. Its totient is φ = 11929090.

The previous prime is 11929039. The next prime is 11929123. The reversal of 11929091 is 19092911.

It is an a-pointer prime, because the next prime (11929123) can be obtained adding 11929091 to its sum of digits (32).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11929091 - 2²² = 7734787 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11929031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5964545 + 5964546.

It is an arithmetic number, because the mean of its divisors is an integer number (5964546).

Almost surely, 2^11929091 is an apocalyptic number.

11929091 is a deficient number, since it is larger than the sum of its proper divisors (1).

11929091 is an equidigital number, since it uses as much as digits as its factorization.

11929091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 32.

The square root of 11929091 is about 3453.8516181214. The cubic root of 11929091 is about 228.4910098977.

The spelling of 11929091 in words is "eleven million, nine hundred twenty-nine thousand, ninety-one".