1012359505 has 4 divisors (see below), whose sum is σ = 1214831412. Its totient is φ = 809887600.

The previous prime is 1012359487. The next prime is 1012359527. The reversal of 1012359505 is 5059532101.

1012359505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 617820736 + 394538769 = 24856^2 + 19863^2 .

It is not a de Polignac number, because 1012359505 - 2⁵ = 1012359473 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101235946 + ... + 101235955.

It is an arithmetic number, because the mean of its divisors is an integer number (303707853).

Almost surely, 2^1012359505 is an apocalyptic number.

It is an amenable number.

1012359505 is a deficient number, since it is larger than the sum of its proper divisors (202471907).

1012359505 is an equidigital number, since it uses as much as digits as its factorization.

1012359505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202471906.

The product of its (nonzero) digits is 6750, while the sum is 31.

The square root of 1012359505 is about 31817.5974108668. The cubic root of 1012359505 is about 1004.1029775515.

The spelling of 1012359505 in words is "one billion, twelve million, three hundred fifty-nine thousand, five hundred five".