2245295981 has 2 divisors, whose sum is σ = 2245295982. Its totient is φ = 2245295980.

The previous prime is 2245295951. The next prime is 2245295989. The reversal of 2245295981 is 1895925422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2232090025 + 13205956 = 47245^2 + 3634^2 .

It is a cyclic number.

It is not a de Polignac number, because 2245295981 - 2¹⁰ = 2245294957 is a prime.

It is a super-2 number, since 2×2245295981² = 10082708084589504722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2245295989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1122647990 + 1122647991.

It is an arithmetic number, because the mean of its divisors is an integer number (1122647991).

Almost surely, 2^2245295981 is an apocalyptic number.

It is an amenable number.

2245295981 is a deficient number, since it is larger than the sum of its proper divisors (1).

2245295981 is an equidigital number, since it uses as much as digits as its factorization.

2245295981 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 47.

The square root of 2245295981 is about 47384.5542450280. The cubic root of 2245295981 is about 1309.4568735046.

The spelling of 2245295981 in words is "two billion, two hundred forty-five million, two hundred ninety-five thousand, nine hundred eighty-one".