1245324224405 has 8 divisors (see below), whose sum is σ = 1494489987384. Its totient is φ = 996192100800.

The previous prime is 1245324224399. The next prime is 1245324224407. The reversal of 1245324224405 is 5044224235421.

It can be written as a sum of positive squares in 4 ways, for example, as 117291180484 + 1128033043921 = 342478^2 + 1062089^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1245324224405 - 2⁸ = 1245324224149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1245324224407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8328326 + ... + 8476535.

It is an arithmetic number, because the mean of its divisors is an integer number (186811248423).

Almost surely, 2^{1245324224405} is an apocalyptic number.

It is an amenable number.

1245324224405 is a deficient number, since it is larger than the sum of its proper divisors (249165762979).

1245324224405 is a wasteful number, since it uses less digits than its factorization.

1245324224405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16819687.

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 1245324224405 its reverse (5044224235421), we get a palindrome (6289548459826).

The spelling of 1245324224405 in words is "one trillion, two hundred forty-five billion, three hundred twenty-four million, two hundred twenty-four thousand, four hundred five".