1013945705 has 16 divisors (see below), whose sum is σ = 1332735120. Its totient is φ = 737114112.

The previous prime is 1013945693. The next prime is 1013945707. The reversal of 1013945705 is 5075493101.

It can be written as a sum of positive squares in 8 ways, for example, as 87534736 + 926410969 = 9356^2 + 30437^2 .

It is not a de Polignac number, because 1013945705 - 2⁶ = 1013945641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1013945707) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 203204 + ... + 208133.

It is an arithmetic number, because the mean of its divisors is an integer number (83295945).

Almost surely, 2^1013945705 is an apocalyptic number.

It is an amenable number.

1013945705 is a deficient number, since it is larger than the sum of its proper divisors (318789415).

1013945705 is a wasteful number, since it uses less digits than its factorization.

1013945705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411388.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 1013945705 is about 31842.5141124252. The cubic root of 1013945705 is about 1004.6271250246.

The spelling of 1013945705 in words is "one billion, thirteen million, nine hundred forty-five thousand, seven hundred five".