1287485083 has 4 divisors (see below), whose sum is σ = 1287632560. Its totient is φ = 1287337608.

The previous prime is 1287485047. The next prime is 1287485107. The reversal of 1287485083 is 3805847821.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3805847821 = 2917 ⋅1304713.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1287485083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1287485033) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59760 + ... + 78397.

It is an arithmetic number, because the mean of its divisors is an integer number (321908140).

Almost surely, 2^1287485083 is an apocalyptic number.

1287485083 is a deficient number, since it is larger than the sum of its proper divisors (147477).

1287485083 is an equidigital number, since it uses as much as digits as its factorization.

1287485083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147476.

The product of its (nonzero) digits is 430080, while the sum is 46.

The square root of 1287485083 is about 35881.5423720887. The cubic root of 1287485083 is about 1087.8793555290.

The spelling of 1287485083 in words is "one billion, two hundred eighty-seven million, four hundred eighty-five thousand, eighty-three".