2991122 has 4 divisors (see below), whose sum is σ = 4486686. Its totient is φ = 1495560.

The previous prime is 2991103. The next prime is 2991139. The reversal of 2991122 is 2211992.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2989441 + 1681 = 1729^2 + 41^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2991091 and 2991100.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 747779 + ... + 747782.

2^2991122 is an apocalyptic number.

2991122 is a deficient number, since it is larger than the sum of its proper divisors (1495564).

2991122 is a wasteful number, since it uses less digits than its factorization.

2991122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1495563.

The product of its digits is 648, while the sum is 26.

The square root of 2991122 is about 1729.4860508255. The cubic root of 2991122 is about 144.0825465506.

It can be divided in two parts, 2991 and 122, that added together give a palindrome (3113).

The spelling of 2991122 in words is "two million, nine hundred ninety-one thousand, one hundred twenty-two".