1118029949 has 2 divisors, whose sum is σ = 1118029950. Its totient is φ = 1118029948.

The previous prime is 1118029907. The next prime is 1118029951. The reversal of 1118029949 is 9499208111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1063933924 + 54096025 = 32618^2 + 7355^2 .

It is an emirp because it is prime and its reverse (9499208111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1118029949 is a prime.

Together with 1118029951, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1118029349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 559014974 + 559014975.

It is an arithmetic number, because the mean of its divisors is an integer number (559014975).

Almost surely, 2^1118029949 is an apocalyptic number.

It is an amenable number.

1118029949 is a deficient number, since it is larger than the sum of its proper divisors (1).

1118029949 is an equidigital number, since it uses as much as digits as its factorization.

1118029949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 1118029949 is about 33436.9548404157. The cubic root of 1118029949 is about 1037.8895654975.

The spelling of 1118029949 in words is "one billion, one hundred eighteen million, twenty-nine thousand, nine hundred forty-nine".