1103664949 has 4 divisors (see below), whose sum is σ = 1106156736. Its totient is φ = 1101173164.

The previous prime is 1103664931. The next prime is 1103664953. The reversal of 1103664949 is 9494663011.

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 not a de Polignac number, because 1103664949 - 2⁹ = 1103664437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1103664929) 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, 1245229 + ... + 1246114.

It is an arithmetic number, because the mean of its divisors is an integer number (276539184).

Almost surely, 2^1103664949 is an apocalyptic number.

It is an amenable number.

1103664949 is a deficient number, since it is larger than the sum of its proper divisors (2491787).

1103664949 is an equidigital number, since it uses as much as digits as its factorization.

1103664949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491786.

The product of its (nonzero) digits is 139968, while the sum is 43.

The square root of 1103664949 is about 33221.4531440152. The cubic root of 1103664949 is about 1033.4252851808.

The spelling of 1103664949 in words is "one billion, one hundred three million, six hundred sixty-four thousand, nine hundred forty-nine".