11129471 has 4 divisors (see below), whose sum is σ = 11139744. Its totient is φ = 11119200.

The previous prime is 11129467. The next prime is 11129501. The reversal of 11129471 is 17492111.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 11129471 - 2² = 11129467 is a prime.

It is a super-3 number, since 3×11129471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11129471.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290 + ... + 5751.

It is an arithmetic number, because the mean of its divisors is an integer number (2784936).

Almost surely, 2^11129471 is an apocalyptic number.

11129471 is a deficient number, since it is larger than the sum of its proper divisors (10273).

11129471 is an equidigital number, since it uses as much as digits as its factorization.

11129471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10272.

The product of its digits is 504, while the sum is 26.

The square root of 11129471 is about 3336.0861799420. The cubic root of 11129471 is about 223.2671562051.

The spelling of 11129471 in words is "eleven million, one hundred twenty-nine thousand, four hundred seventy-one".