405513233045 has 4 divisors (see below), whose sum is σ = 486615879660. Its totient is φ = 324410586432.

The previous prime is 405513233009. The next prime is 405513233089. The reversal of 405513233045 is 540332315504.

It is a happy number.

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 125944072996 + 279569160049 = 354886^2 + 528743^2 .

It is a cyclic number.

It is not a de Polignac number, because 405513233045 - 2²² = 405509038741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405513232996 and 405513233014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40551323300 + ... + 40551323309.

It is an arithmetic number, because the mean of its divisors is an integer number (121653969915).

Almost surely, 2^405513233045 is an apocalyptic number.

It is an amenable number.

405513233045 is a deficient number, since it is larger than the sum of its proper divisors (81102646615).

405513233045 is an equidigital number, since it uses as much as digits as its factorization.

405513233045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81102646614.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 405513233045 its reverse (540332315504), we get a palindrome (945845548549).

The spelling of 405513233045 in words is "four hundred five billion, five hundred thirteen million, two hundred thirty-three thousand, forty-five".