1122647949 has 6 divisors (see below), whose sum is σ = 1621602606. Its totient is φ = 748431960.

The previous prime is 1122647941. The next prime is 1122647987. The reversal of 1122647949 is 9497462211.

1122647949 is a `hidden beast` number, since 112 + 26 + 479 + 49 = 666.

It can be written as a sum of positive squares in only one way, i.e., 967645449 + 155002500 = 31107^2 + 12450^2 .

It is not a de Polignac number, because 1122647949 - 2³ = 1122647941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122647941) 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 5 ways as a sum of consecutive naturals, for example, 62369322 + ... + 62369339.

It is an arithmetic number, because the mean of its divisors is an integer number (270267101).

Almost surely, 2^1122647949 is an apocalyptic number.

It is an amenable number.

1122647949 is a deficient number, since it is larger than the sum of its proper divisors (498954657).

1122647949 is a wasteful number, since it uses less digits than its factorization.

1122647949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124738667 (or 124738664 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1122647949 is about 33505.9390108679. The cubic root of 1122647949 is about 1039.3165964476.

The spelling of 1122647949 in words is "one billion, one hundred twenty-two million, six hundred forty-seven thousand, nine hundred forty-nine".