1109553827 has 6 divisors (see below), whose sum is σ = 1128045204. Its totient is φ = 1091360760.

The previous prime is 1109553793. The next prime is 1109553871. The reversal of 1109553827 is 7283559011.

It is not a de Polignac number, because 1109553827 - 2¹⁰ = 1109552803 is a prime.

It is a super-2 number, since 2×1109553827² = 2462219390020691858, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1109553227) 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, 145373 + ... + 152814.

It is an arithmetic number, because the mean of its divisors is an integer number (188007534).

Almost surely, 2^1109553827 is an apocalyptic number.

1109553827 is a deficient number, since it is larger than the sum of its proper divisors (18491377).

1109553827 is an frugal number, since it uses more digits than its factorization.

1109553827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298309 (or 298248 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 41.

The square root of 1109553827 is about 33309.9658810993. The cubic root of 1109553827 is about 1035.2600580304.

The spelling of 1109553827 in words is "one billion, one hundred nine million, five hundred fifty-three thousand, eight hundred twenty-seven".