405513233245 has 4 divisors (see below), whose sum is σ = 486615879900. Its totient is φ = 324410586592.

The previous prime is 405513233171. The next prime is 405513233249. The reversal of 405513233245 is 542332315504.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 286424054596 + 119089178649 = 535186^2 + 345093^2 .

It is a cyclic number.

It is not a de Polignac number, because 405513233245 - 2²⁹ = 404976362333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405513233249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40551323320 + ... + 40551323329.

It is an arithmetic number, because the mean of its divisors is an integer number (121653969975).

Almost surely, 2^405513233245 is an apocalyptic number.

It is an amenable number.

405513233245 is a deficient number, since it is larger than the sum of its proper divisors (81102646655).

405513233245 is an equidigital number, since it uses as much as digits as its factorization.

405513233245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81102646654.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 405513233245 its reverse (542332315504), we get a palindrome (947845548749).

The spelling of 405513233245 in words is "four hundred five billion, five hundred thirteen million, two hundred thirty-three thousand, two hundred forty-five".