1072003805 has 4 divisors (see below), whose sum is σ = 1286404572. Its totient is φ = 857603040.

The previous prime is 1072003781. The next prime is 1072003831. The reversal of 1072003805 is 5083002701.

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 172843609 + 899160196 = 13147^2 + 29986^2 .

It is not a de Polignac number, because 1072003805 - 2⁶ = 1072003741 is a prime.

It is a super-2 number, since 2×1072003805² = 2298384315868956050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent 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, 107200376 + ... + 107200385.

It is an arithmetic number, because the mean of its divisors is an integer number (321601143).

Almost surely, 2^1072003805 is an apocalyptic number.

It is an amenable number.

1072003805 is a deficient number, since it is larger than the sum of its proper divisors (214400767).

1072003805 is an equidigital number, since it uses as much as digits as its factorization.

1072003805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214400766.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 1072003805 is about 32741.4691942802. The cubic root of 1072003805 is about 1023.4472002678.

The spelling of 1072003805 in words is "one billion, seventy-two million, three thousand, eight hundred five".