1106543649 has 4 divisors (see below), whose sum is σ = 1475391536. Its totient is φ = 737695764.

The previous prime is 1106543611. The next prime is 1106543687. The reversal of 1106543649 is 9463456011.

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 an interprime number because it is at equal distance from previous prime (1106543611) and next prime (1106543687).

It is not a de Polignac number, because 1106543649 - 2⁷ = 1106543521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1106543149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184423939 + ... + 184423944.

It is an arithmetic number, because the mean of its divisors is an integer number (368847884).

Almost surely, 2^1106543649 is an apocalyptic number.

It is an amenable number.

1106543649 is a deficient number, since it is larger than the sum of its proper divisors (368847887).

1106543649 is an equidigital number, since it uses as much as digits as its factorization.

1106543649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368847886.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1106543649 is about 33264.7508483079. The cubic root of 1106543649 is about 1034.3230028583.

The spelling of 1106543649 in words is "one billion, one hundred six million, five hundred forty-three thousand, six hundred forty-nine".