1283783055 has 8 divisors (see below), whose sum is σ = 2054052912. Its totient is φ = 684684288.

The previous prime is 1283783027. The next prime is 1283783057. The reversal of 1283783055 is 5503873821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1283783055 - 2⁹ = 1283782543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1283782998 and 1283783016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1283783057) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42792754 + ... + 42792783.

It is an arithmetic number, because the mean of its divisors is an integer number (256756614).

Almost surely, 2^1283783055 is an apocalyptic number.

1283783055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1283783055 is a deficient number, since it is larger than the sum of its proper divisors (770269857).

1283783055 is an equidigital number, since it uses as much as digits as its factorization.

1283783055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85585545.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 1283783055 is about 35829.9184341801. The cubic root of 1283783055 is about 1086.8356603050.

The spelling of 1283783055 in words is "one billion, two hundred eighty-three million, seven hundred eighty-three thousand, fifty-five".