11171151 has 12 divisors (see below), whose sum is σ = 16572712. Its totient is φ = 7245936.

The previous prime is 11171137. The next prime is 11171179. The reversal of 11171151 is 15117111.

It is not a de Polignac number, because 11171151 - 2⁶ = 11171087 is a prime.

It is a super-2 number, since 2×11171151² = 249589229329602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11171051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16441 + ... + 17106.

Almost surely, 2^11171151 is an apocalyptic number.

11171151 is a deficient number, since it is larger than the sum of its proper divisors (5401561).

11171151 is a wasteful number, since it uses less digits than its factorization.

11171151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33590 (or 33587 counting only the distinct ones).

The product of its digits is 35, while the sum is 18.

The square root of 11171151 is about 3342.3271832662. The cubic root of 11171151 is about 223.5455217098.

Adding to 11171151 its reverse (15117111), we get a palindrome (26288262).

The spelling of 11171151 in words is "eleven million, one hundred seventy-one thousand, one hundred fifty-one".