1283563379 has 6 divisors (see below), whose sum is σ = 1493124804. Its totient is φ = 1100197140.

The previous prime is 1283563313. The next prime is 1283563387. The reversal of 1283563379 is 9733653821.

It is not a de Polignac number, because 1283563379 - 2¹² = 1283559283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1283563079) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13097537 + ... + 13097634.

It is an arithmetic number, because the mean of its divisors is an integer number (248854134).

Almost surely, 2^1283563379 is an apocalyptic number.

1283563379 is a deficient number, since it is larger than the sum of its proper divisors (209561425).

1283563379 is an equidigital number, since it uses as much as digits as its factorization.

1283563379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26195185 (or 26195178 counting only the distinct ones).

The product of its digits is 816480, while the sum is 47.

The square root of 1283563379 is about 35826.8527643721. The cubic root of 1283563379 is about 1086.7736650614.

The spelling of 1283563379 in words is "one billion, two hundred eighty-three million, five hundred sixty-three thousand, three hundred seventy-nine".