2445312421 has 2 divisors, whose sum is σ = 2445312422. Its totient is φ = 2445312420.

The previous prime is 2445312383. The next prime is 2445312427. The reversal of 2445312421 is 1242135442.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1583244100 + 862068321 = 39790^2 + 29361^2 .

It is a cyclic number.

It is not a de Polignac number, because 2445312421 - 2²³ = 2436923813 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2445312421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2445312427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1222656210 + 1222656211.

It is an arithmetic number, because the mean of its divisors is an integer number (1222656211).

Almost surely, 2^2445312421 is an apocalyptic number.

It is an amenable number.

2445312421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2445312421 is an equidigital number, since it uses as much as digits as its factorization.

2445312421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7680, while the sum is 28.

The square root of 2445312421 is about 49450.1003133462. The cubic root of 2445312421 is about 1347.2394289878.

Adding to 2445312421 its reverse (1242135442), we get a palindrome (3687447863).

The spelling of 2445312421 in words is "two billion, four hundred forty-five million, three hundred twelve thousand, four hundred twenty-one".