1109171469 has 16 divisors (see below), whose sum is σ = 1691620992. Its totient is φ = 633266688.

The previous prime is 1109171461. The next prime is 1109171519. The reversal of 1109171469 is 9641719011.

It is not a de Polignac number, because 1109171469 - 2³ = 1109171461 is a prime.

It is a super-2 number, since 2×1109171469² = 2460522695287235922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1109171461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2917 + ... + 47189.

It is an arithmetic number, because the mean of its divisors is an integer number (105726312).

Almost surely, 2^1109171469 is an apocalyptic number.

It is an amenable number.

1109171469 is a deficient number, since it is larger than the sum of its proper divisors (582449523).

1109171469 is a wasteful number, since it uses less digits than its factorization.

1109171469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45476.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 1109171469 is about 33304.2259931078. The cubic root of 1109171469 is about 1035.1411257070.

It can be divided in two parts, 1109 and 171469, that added together give a triangular number (172578 = T₅₈₇).

The spelling of 1109171469 in words is "one billion, one hundred nine million, one hundred seventy-one thousand, four hundred sixty-nine".