11929271 has 2 divisors, whose sum is σ = 11929272. Its totient is φ = 11929270.

The previous prime is 11929243. The next prime is 11929279. The reversal of 11929271 is 17292911.

It is a strong prime.

It is an emirp because it is prime and its reverse (17292911) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11929271 - 2¹⁸ = 11667127 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11929279) 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, 5964635 + 5964636.

It is an arithmetic number, because the mean of its divisors is an integer number (5964636).

Almost surely, 2^11929271 is an apocalyptic number.

11929271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11929271 is an equidigital number, since it uses as much as digits as its factorization.

11929271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2268, while the sum is 32.

The square root of 11929271 is about 3453.8776758884. The cubic root of 11929271 is about 228.4921591380.

It can be divided in two parts, 11 and 929271, that multiplied together give a triangular number (10221981 = T₄₅₂₁).

The spelling of 11929271 in words is "eleven million, nine hundred twenty-nine thousand, two hundred seventy-one".