1108648949 has 4 divisors (see below), whose sum is σ = 1122682560. Its totient is φ = 1094615340.

The previous prime is 1108648873. The next prime is 1108648951. The reversal of 1108648949 is 9498468011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1108648949 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1108648897 and 1108648906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1108648969) 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, 7016687 + ... + 7016844.

It is an arithmetic number, because the mean of its divisors is an integer number (280670640).

Almost surely, 2^1108648949 is an apocalyptic number.

It is an amenable number.

1108648949 is a deficient number, since it is larger than the sum of its proper divisors (14033611).

1108648949 is an equidigital number, since it uses as much as digits as its factorization.

1108648949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14033610.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 1108648949 is about 33296.3804188984. The cubic root of 1108648949 is about 1034.9785518360.

The spelling of 1108648949 in words is "one billion, one hundred eight million, six hundred forty-eight thousand, nine hundred forty-nine".