1283998147 has 2 divisors, whose sum is σ = 1283998148. Its totient is φ = 1283998146.

The previous prime is 1283998141. The next prime is 1283998159. The reversal of 1283998147 is 7418993821.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1283998147 - 2¹⁹ = 1283473859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1283998094 and 1283998103.

It is not a weakly prime, because it can be changed into another prime (1283998141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641999073 + 641999074.

It is an arithmetic number, because the mean of its divisors is an integer number (641999074).

Almost surely, 2^1283998147 is an apocalyptic number.

1283998147 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283998147 is an equidigital number, since it uses as much as digits as its factorization.

1283998147 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 1283998147 is about 35832.9198782349. The cubic root of 1283998147 is about 1086.8963550360.

The spelling of 1283998147 in words is "one billion, two hundred eighty-three million, nine hundred ninety-eight thousand, one hundred forty-seven".