1283454545 has 16 divisors (see below), whose sum is σ = 1550016000. Its totient is φ = 1020203328.

The previous prime is 1283454539. The next prime is 1283454577. The reversal of 1283454545 is 5454543821.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1283454545 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 822476 + ... + 824034.

It is an arithmetic number, because the mean of its divisors is an integer number (96876000).

Almost surely, 2^1283454545 is an apocalyptic number.

It is an amenable number.

1283454545 is a deficient number, since it is larger than the sum of its proper divisors (266561455).

1283454545 is a wasteful number, since it uses less digits than its factorization.

1283454545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2512.

The product of its digits is 384000, while the sum is 41.

The square root of 1283454545 is about 35825.3338435248. Note that the first 3 decimals coincide. The cubic root of 1283454545 is about 1086.7429481603.

The spelling of 1283454545 in words is "one billion, two hundred eighty-three million, four hundred fifty-four thousand, five hundred forty-five".