1283399049 has 4 divisors (see below), whose sum is σ = 1711198736. Its totient is φ = 855599364.

The previous prime is 1283398993. The next prime is 1283399059. The reversal of 1283399049 is 9409933821.

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.

It is not a de Polignac number, because 1283399049 - 2¹² = 1283394953 is a prime.

It is a super-2 number, since 2×1283399049² = 3294226237948208802, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1283398989 and 1283399007.

It is not an unprimeable number, because it can be changed into a prime (1283399059) 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, 213899839 + ... + 213899844.

It is an arithmetic number, because the mean of its divisors is an integer number (427799684).

Almost surely, 2^1283399049 is an apocalyptic number.

It is an amenable number.

1283399049 is a deficient number, since it is larger than the sum of its proper divisors (427799687).

1283399049 is an equidigital number, since it uses as much as digits as its factorization.

1283399049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427799686.

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 1283399049 is about 35824.5592994527. The cubic root of 1283399049 is about 1086.7272845083.

The spelling of 1283399049 in words is "one billion, two hundred eighty-three million, three hundred ninety-nine thousand, forty-nine".