905312305 has 16 divisors (see below), whose sum is σ = 1156322304. Its totient is φ = 678065920.

The previous prime is 905312299. The next prime is 905312327. The reversal of 905312305 is 503213509.

It is not a de Polignac number, because 905312305 - 2¹⁵ = 905279537 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11647 + ... + 44116.

It is an arithmetic number, because the mean of its divisors is an integer number (72270144).

Almost surely, 2^905312305 is an apocalyptic number.

It is an amenable number.

905312305 is a deficient number, since it is larger than the sum of its proper divisors (251009999).

905312305 is a wasteful number, since it uses less digits than its factorization.

905312305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55976.

The product of its (nonzero) digits is 4050, while the sum is 28.

The square root of 905312305 is about 30088.4081499836. The cubic root of 905312305 is about 967.3852793042.

The spelling of 905312305 in words is "nine hundred five million, three hundred twelve thousand, three hundred five".