1108849837 has 4 divisors (see below), whose sum is σ = 1174076316. Its totient is φ = 1043623360.

The previous prime is 1108849793. The next prime is 1108849867. The reversal of 1108849837 is 7389488011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7389488011 = 31 ⋅238370581.

It can be written as a sum of positive squares in 2 ways, for example, as 903242916 + 205606921 = 30054^2 + 14339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1108849837 is a prime.

It is a super-2 number, since 2×1108849837² = 2459095922029853138, which contains 22 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 (1108849867) 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, 32613214 + ... + 32613247.

It is an arithmetic number, because the mean of its divisors is an integer number (293519079).

Almost surely, 2^1108849837 is an apocalyptic number.

1108849837 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1108849837 is a deficient number, since it is larger than the sum of its proper divisors (65226479).

1108849837 is an equidigital number, since it uses as much as digits as its factorization.

1108849837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65226478.

The product of its (nonzero) digits is 387072, while the sum is 49.

The square root of 1108849837 is about 33299.3969464914. The cubic root of 1108849837 is about 1035.0410610173.

The spelling of 1108849837 in words is "one billion, one hundred eight million, eight hundred forty-nine thousand, eight hundred thirty-seven".