1109471 has 12 divisors (see below), whose sum is σ = 1289400. Its totient is φ = 946560.

The previous prime is 1109431. The next prime is 1109473. The reversal of 1109471 is 1749011.

It is not a de Polignac number, because 1109471 - 2¹⁰ = 1108447 is a prime.

It is a super-3 number, since 3×1109471³ = 4097029767067482333, which contains 333 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 (1109473) 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, 3005 + ... + 3353.

It is an arithmetic number, because the mean of its divisors is an integer number (107450).

2^1109471 is an apocalyptic number.

1109471 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1109471 is a deficient number, since it is larger than the sum of its proper divisors (179929).

1109471 is a wasteful number, since it uses less digits than its factorization.

1109471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394 (or 377 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 23.

The square root of 1109471 is about 1053.3142930769. The cubic root of 1109471 is about 103.5234297039.

The spelling of 1109471 in words is "one million, one hundred nine thousand, four hundred seventy-one".