2949119981 has 2 divisors, whose sum is σ = 2949119982. Its totient is φ = 2949119980.

The previous prime is 2949119977. The next prime is 2949120001. The reversal of 2949119981 is 1899119492.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2859040900 + 90079081 = 53470^2 + 9491^2 .

It is a cyclic number.

It is not a de Polignac number, because 2949119981 - 2² = 2949119977 is a prime.

It is a super-2 number, since 2×2949119981² = 17394617324666880722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2949119581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1474559990 + 1474559991.

It is an arithmetic number, because the mean of its divisors is an integer number (1474559991).

Almost surely, 2^2949119981 is an apocalyptic number.

It is an amenable number.

2949119981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2949119981 is an equidigital number, since it uses as much as digits as its factorization.

2949119981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 419904, while the sum is 53.

The square root of 2949119981 is about 54305.8006201916. The cubic root of 2949119981 is about 1434.0495158186.

The spelling of 2949119981 in words is "two billion, nine hundred forty-nine million, one hundred nineteen thousand, nine hundred eighty-one".