405013045 has 8 divisors (see below), whose sum is σ = 487140696. Its totient is φ = 323260416.

The previous prime is 405013031. The next prime is 405013061. The reversal of 405013045 is 540310504.

It can be written as a sum of positive squares in 4 ways, for example, as 158404 + 404854641 = 398^2 + 20121^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 405013045 - 2⁷ = 405012917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91372 + ... + 95701.

It is an arithmetic number, because the mean of its divisors is an integer number (60892587).

Almost surely, 2^405013045 is an apocalyptic number.

It is an amenable number.

405013045 is a deficient number, since it is larger than the sum of its proper divisors (82127651).

405013045 is a wasteful number, since it uses less digits than its factorization.

405013045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187511.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 405013045 is about 20124.9359005190. The cubic root of 405013045 is about 739.8715658525.

Adding to 405013045 its reverse (540310504), we get a palindrome (945323549).

The spelling of 405013045 in words is "four hundred five million, thirteen thousand, forty-five".