803112649 has 4 divisors (see below), whose sum is σ = 803302164. Its totient is φ = 802923136.

The previous prime is 803112647. The next prime is 803112659. The reversal of 803112649 is 946211308.

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 120231225 + 682881424 = 10965^2 + 26132^2 .

It is a cyclic number.

It is not a de Polignac number, because 803112649 - 2¹ = 803112647 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (803112647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88252 + ... + 96925.

It is an arithmetic number, because the mean of its divisors is an integer number (200825541).

Almost surely, 2^803112649 is an apocalyptic number.

It is an amenable number.

803112649 is a deficient number, since it is larger than the sum of its proper divisors (189515).

803112649 is a wasteful number, since it uses less digits than its factorization.

803112649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189514.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 803112649 is about 28339.2422093464. The cubic root of 803112649 is about 929.5201783528.

The spelling of 803112649 in words is "eight hundred three million, one hundred twelve thousand, six hundred forty-nine".