2449993181 has 2 divisors, whose sum is σ = 2449993182. Its totient is φ = 2449993180.

The previous prime is 2449993177. The next prime is 2449993193. The reversal of 2449993181 is 1813999442.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2439372100 + 10621081 = 49390^2 + 3259^2 .

It is a cyclic number.

It is not a de Polignac number, because 2449993181 - 2² = 2449993177 is a prime.

It is a super-2 number, since 2×2449993181² = 12004933173892997522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2449993121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1224996590 + 1224996591.

It is an arithmetic number, because the mean of its divisors is an integer number (1224996591).

Almost surely, 2^2449993181 is an apocalyptic number.

It is an amenable number.

2449993181 is a deficient number, since it is larger than the sum of its proper divisors (1).

2449993181 is an equidigital number, since it uses as much as digits as its factorization.

2449993181 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 50.

The square root of 2449993181 is about 49497.4058007084. The cubic root of 2449993181 is about 1348.0984991803.

The spelling of 2449993181 in words is "two billion, four hundred forty-nine million, nine hundred ninety-three thousand, one hundred eighty-one".