1171541217 has 64 divisors (see below), whose sum is σ = 2027980800. Its totient is φ = 583726080.

The previous prime is 1171541209. The next prime is 1171541219. The reversal of 1171541217 is 7121451711.

It is not a de Polignac number, because 1171541217 - 2³ = 1171541209 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1171541219) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1198633 + ... + 1199609.

It is an arithmetic number, because the mean of its divisors is an integer number (31687200).

Almost surely, 2^1171541217 is an apocalyptic number.

It is an amenable number.

1171541217 is a deficient number, since it is larger than the sum of its proper divisors (856439583).

1171541217 is a wasteful number, since it uses less digits than its factorization.

1171541217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206.

The product of its digits is 1960, while the sum is 30.

The square root of 1171541217 is about 34227.7842841163. The cubic root of 1171541217 is about 1054.1907248830.

Adding to 1171541217 its reverse (7121451711), we get a palindrome (8292992928).

The spelling of 1171541217 in words is "one billion, one hundred seventy-one million, five hundred forty-one thousand, two hundred seventeen".