2248765381 has 2 divisors, whose sum is σ = 2248765382. Its totient is φ = 2248765380.

The previous prime is 2248765369. The next prime is 2248765399. The reversal of 2248765381 is 1835678422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1945692100 + 303073281 = 44110^2 + 17409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2248765381 is a prime.

It is a super-2 number, since 2×2248765381² = 10113891477568150322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2248765301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124382690 + 1124382691.

It is an arithmetic number, because the mean of its divisors is an integer number (1124382691).

Almost surely, 2^2248765381 is an apocalyptic number.

It is an amenable number.

2248765381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2248765381 is an equidigital number, since it uses as much as digits as its factorization.

2248765381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

The square root of 2248765381 is about 47421.1490898312. The cubic root of 2248765381 is about 1310.1309779107.

The spelling of 2248765381 in words is "two billion, two hundred forty-eight million, seven hundred sixty-five thousand, three hundred eighty-one".