405052105 has 8 divisors (see below), whose sum is σ = 487277064. Its totient is φ = 323232000.

The previous prime is 405052091. The next prime is 405052111. The reversal of 405052105 is 501250504.

It can be written as a sum of positive squares in 4 ways, for example, as 151191616 + 253860489 = 12296^2 + 15933^2 .

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

It is not a de Polignac number, because 405052105 - 2¹¹ = 405050057 is a prime.

It is a Duffinian 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, 99006 + ... + 103015.

It is an arithmetic number, because the mean of its divisors is an integer number (60909633).

Almost surely, 2^405052105 is an apocalyptic number.

It is an amenable number.

405052105 is a deficient number, since it is larger than the sum of its proper divisors (82224959).

405052105 is a wasteful number, since it uses less digits than its factorization.

405052105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202427.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 405052105 is about 20125.9063149961. The cubic root of 405052105 is about 739.8953498225.

The spelling of 405052105 in words is "four hundred five million, fifty-two thousand, one hundred five".