1283763197 has 4 divisors (see below), whose sum is σ = 1283852640. Its totient is φ = 1283673756.

The previous prime is 1283763167. The next prime is 1283763233. The reversal of 1283763197 is 7913673821.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7913673821 = 701 ⋅11289121.

It is a cyclic number.

It is not a de Polignac number, because 1283763197 - 2¹² = 1283759101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283763127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17783 + ... + 53700.

It is an arithmetic number, because the mean of its divisors is an integer number (320963160).

Almost surely, 2^1283763197 is an apocalyptic number.

It is an amenable number.

1283763197 is a deficient number, since it is larger than the sum of its proper divisors (89443).

1283763197 is an equidigital number, since it uses as much as digits as its factorization.

1283763197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89442.

The product of its digits is 381024, while the sum is 47.

The square root of 1283763197 is about 35829.6413183275. The cubic root of 1283763197 is about 1086.8300564263.

The spelling of 1283763197 in words is "one billion, two hundred eighty-three million, seven hundred sixty-three thousand, one hundred ninety-seven".