1821460373 has 2 divisors, whose sum is σ = 1821460374. Its totient is φ = 1821460372.

The previous prime is 1821460369. The next prime is 1821460379. The reversal of 1821460373 is 3730641281.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046004964 + 775455409 = 32342^2 + 27847^2 .

It is an emirp because it is prime and its reverse (3730641281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1821460373 - 2² = 1821460369 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1821460379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 910730186 + 910730187.

It is an arithmetic number, because the mean of its divisors is an integer number (910730187).

Almost surely, 2^1821460373 is an apocalyptic number.

It is an amenable number.

1821460373 is a deficient number, since it is larger than the sum of its proper divisors (1).

1821460373 is an equidigital number, since it uses as much as digits as its factorization.

1821460373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24192, while the sum is 35.

The square root of 1821460373 is about 42678.5704188882. The cubic root of 1821460373 is about 1221.2556214098.

It can be divided in two parts, 18214 and 60373, that added together give a palindrome (78587).

The spelling of 1821460373 in words is "one billion, eight hundred twenty-one million, four hundred sixty thousand, three hundred seventy-three".