1101664247 has 4 divisors (see below), whose sum is σ = 1101732456. Its totient is φ = 1101596040.

The previous prime is 1101664237. The next prime is 1101664259. The reversal of 1101664247 is 7424661011.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1101664247 - 2²⁸ = 833228791 is a prime.

It is a super-2 number, since 2×1101664247² = 2427328226236154018, 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 (1101664237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5297 + ... + 47237.

It is an arithmetic number, because the mean of its divisors is an integer number (275433114).

Almost surely, 2^1101664247 is an apocalyptic number.

1101664247 is a deficient number, since it is larger than the sum of its proper divisors (68209).

1101664247 is an equidigital number, since it uses as much as digits as its factorization.

1101664247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68208.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 1101664247 is about 33191.3278884711. The cubic root of 1101664247 is about 1032.8004498234.

The spelling of 1101664247 in words is "one billion, one hundred one million, six hundred sixty-four thousand, two hundred forty-seven".