2991122148 has 48 divisors (see below), whose sum is σ = 8085607040. Its totient is φ = 842897664.

The previous prime is 2991122111. The next prime is 2991122153. The reversal of 2991122148 is 8412211992.

It is a super-2 number, since 2×2991122148² = 17893623408512267808, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 237763 + ... + 250026.

Almost surely, 2^2991122148 is an apocalyptic number.

2991122148 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2991122148 is an abundant number, since it is smaller than the sum of its proper divisors (5094484892).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2991122148 is a wasteful number, since it uses less digits than its factorization.

2991122148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487876 (or 487874 counting only the distinct ones).

The product of its digits is 20736, while the sum is 39.

The square root of 2991122148 is about 54691.1523740358. The cubic root of 2991122148 is about 1440.8254892697.

The spelling of 2991122148 in words is "two billion, nine hundred ninety-one million, one hundred twenty-two thousand, one hundred forty-eight".