1121005149 has 32 divisors (see below), whose sum is σ = 1758274560. Its totient is φ = 627926400.

The previous prime is 1121005147. The next prime is 1121005163. The reversal of 1121005149 is 9415001211.

It is a happy number.

It is not a de Polignac number, because 1121005149 - 2¹ = 1121005147 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121005147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3904 + ... + 47510.

It is an arithmetic number, because the mean of its divisors is an integer number (54946080).

Almost surely, 2^1121005149 is an apocalyptic number.

1121005149 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

1121005149 is a deficient number, since it is larger than the sum of its proper divisors (637269411).

1121005149 is a wasteful number, since it uses less digits than its factorization.

1121005149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43681.

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 1121005149 is about 33481.4149790597. The cubic root of 1121005149 is about 1038.8093959471.

The spelling of 1121005149 in words is "one billion, one hundred twenty-one million, five thousand, one hundred forty-nine".