1141998949 has 32 divisors (see below), whose sum is σ = 1442739200. Its totient is φ = 898200576.

The previous prime is 1141998947. The next prime is 1141998989. The reversal of 1141998949 is 9498991411.

It is not a de Polignac number, because 1141998949 - 2¹ = 1141998947 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1141998949.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141998943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 859924 + ... + 861250.

It is an arithmetic number, because the mean of its divisors is an integer number (45085600).

Almost surely, 2^1141998949 is an apocalyptic number.

It is an amenable number.

1141998949 is a deficient number, since it is larger than the sum of its proper divisors (300740251).

1141998949 is a wasteful number, since it uses less digits than its factorization.

1141998949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554 (or 1540 counting only the distinct ones).

The product of its digits is 839808, while the sum is 55.

The square root of 1141998949 is about 33793.4749470959. The cubic root of 1141998949 is about 1045.2541521435.

The spelling of 1141998949 in words is "one billion, one hundred forty-one million, nine hundred ninety-eight thousand, nine hundred forty-nine".