1047312705 has 32 divisors (see below), whose sum is σ = 1752710400. Its totient is φ = 533012480.

The previous prime is 1047312697. The next prime is 1047312709. The reversal of 1047312705 is 5072137401.

It is not a de Polignac number, because 1047312705 - 2³ = 1047312697 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1047312709) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151525 + ... + 158285.

It is an arithmetic number, because the mean of its divisors is an integer number (54772200).

Almost surely, 2^1047312705 is an apocalyptic number.

1047312705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1047312705 is a deficient number, since it is larger than the sum of its proper divisors (705397695).

1047312705 is a wasteful number, since it uses less digits than its factorization.

1047312705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7241.

The product of its (nonzero) digits is 5880, while the sum is 30.

The square root of 1047312705 is about 32362.2110647588. The cubic root of 1047312705 is about 1015.5285186202.

The spelling of 1047312705 in words is "one billion, forty-seven million, three hundred twelve thousand, seven hundred five".