1822702561 has 2 divisors, whose sum is σ = 1822702562. Its totient is φ = 1822702560.

The previous prime is 1822702537. The next prime is 1822702571. The reversal of 1822702561 is 1652072281.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1533192336 + 289510225 = 39156^2 + 17015^2 .

It is a cyclic number.

It is not a de Polignac number, because 1822702561 - 2¹³ = 1822694369 is a prime.

It is not a weakly prime, because it can be changed into another prime (1822702501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 911351280 + 911351281.

It is an arithmetic number, because the mean of its divisors is an integer number (911351281).

Almost surely, 2^1822702561 is an apocalyptic number.

It is an amenable number.

1822702561 is a deficient number, since it is larger than the sum of its proper divisors (1).

1822702561 is an equidigital number, since it uses as much as digits as its factorization.

1822702561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 1822702561 is about 42693.1207690419. The cubic root of 1822702561 is about 1221.5331797128.

The spelling of 1822702561 in words is "one billion, eight hundred twenty-two million, seven hundred two thousand, five hundred sixty-one".