1288522982 has 4 divisors (see below), whose sum is σ = 1932784476. Its totient is φ = 644261490.

The previous prime is 1288522979. The next prime is 1288522999. The reversal of 1288522982 is 2892258821.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 322130744 + ... + 322130747.

It is an arithmetic number, because the mean of its divisors is an integer number (483196119).

Almost surely, 2^1288522982 is an apocalyptic number.

1288522982 is a deficient number, since it is larger than the sum of its proper divisors (644261494).

1288522982 is an equidigital number, since it uses as much as digits as its factorization.

1288522982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 644261493.

The product of its digits is 368640, while the sum is 47.

The square root of 1288522982 is about 35896.0023122353. The cubic root of 1288522982 is about 1088.1716063254.

The spelling of 1288522982 in words is "one billion, two hundred eighty-eight million, five hundred twenty-two thousand, nine hundred eighty-two".