11281671 has 6 divisors (see below), whose sum is σ = 16295760. Its totient is φ = 7521108.

The previous prime is 11281651. The next prime is 11281681. The reversal of 11281671 is 17618211.

It is not a de Polignac number, because 11281671 - 2⁶ = 11281607 is a prime.

It is a super-2 number, since 2×11281671² = 254552201104482, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11281631) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 626751 + ... + 626768.

It is an arithmetic number, because the mean of its divisors is an integer number (2715960).

Almost surely, 2^11281671 is an apocalyptic number.

11281671 is a deficient number, since it is larger than the sum of its proper divisors (5014089).

11281671 is a wasteful number, since it uses less digits than its factorization.

11281671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253525 (or 1253522 counting only the distinct ones).

The product of its digits is 672, while the sum is 27.

The square root of 11281671 is about 3358.8198820419. The cubic root of 11281671 is about 224.2803078316.

Adding to 11281671 its reverse (17618211), we get a palindrome (28899882).

The spelling of 11281671 in words is "eleven million, two hundred eighty-one thousand, six hundred seventy-one".