1287672083 has 2 divisors, whose sum is σ = 1287672084. Its totient is φ = 1287672082.

The previous prime is 1287672073. The next prime is 1287672101. The reversal of 1287672083 is 3802767821.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1287672083 - 2¹⁶ = 1287606547 is a prime.

It is not a weakly prime, because it can be changed into another prime (1287672053) 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, 643836041 + 643836042.

It is an arithmetic number, because the mean of its divisors is an integer number (643836042).

Almost surely, 2^1287672083 is an apocalyptic number.

1287672083 is a deficient number, since it is larger than the sum of its proper divisors (1).

1287672083 is an equidigital number, since it uses as much as digits as its factorization.

1287672083 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 44.

The square root of 1287672083 is about 35884.1480740452. The cubic root of 1287672083 is about 1087.9320224411.

The spelling of 1287672083 in words is "one billion, two hundred eighty-seven million, six hundred seventy-two thousand, eighty-three".