117211571 has 2 divisors, whose sum is σ = 117211572. Its totient is φ = 117211570.

The previous prime is 117211559. The next prime is 117211613. The reversal of 117211571 is 175112711.

It is a weak prime.

It is an emirp because it is prime and its reverse (175112711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117211571 - 2¹⁴ = 117195187 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 117211571.

It is not a weakly prime, because it can be changed into another prime (117211511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58605785 + 58605786.

It is an arithmetic number, because the mean of its divisors is an integer number (58605786).

Almost surely, 2^117211571 is an apocalyptic number.

117211571 is a deficient number, since it is larger than the sum of its proper divisors (1).

117211571 is an equidigital number, since it uses as much as digits as its factorization.

117211571 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 490, while the sum is 26.

The square root of 117211571 is about 10826.4292820856. The cubic root of 117211571 is about 489.3919585515.

The spelling of 117211571 in words is "one hundred seventeen million, two hundred eleven thousand, five hundred seventy-one".