1283531245 has 8 divisors (see below), whose sum is σ = 1546232184. Its totient is φ = 1022828544.

The previous prime is 1283531237. The next prime is 1283531279. The reversal of 1283531245 is 5421353821.

It can be written as a sum of positive squares in 4 ways, for example, as 787756489 + 495774756 = 28067^2 + 22266^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1283531245 - 2³ = 1283531237 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1283531245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 498144 + ... + 500713.

It is an arithmetic number, because the mean of its divisors is an integer number (193279023).

Almost surely, 2^1283531245 is an apocalyptic number.

It is an amenable number.

1283531245 is a deficient number, since it is larger than the sum of its proper divisors (262700939).

1283531245 is an equidigital number, since it uses as much as digits as its factorization.

1283531245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 999119.

The product of its digits is 28800, while the sum is 34.

The square root of 1283531245 is about 35826.4042990641. The cubic root of 1283531245 is about 1086.7645958620.

The spelling of 1283531245 in words is "one billion, two hundred eighty-three million, five hundred thirty-one thousand, two hundred forty-five".