1288289097 has 8 divisors (see below), whose sum is σ = 1908576480. Its totient is φ = 858859380.

The previous prime is 1288289071. The next prime is 1288289111. The reversal of 1288289097 is 7909828821.

1288289097 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1288289097 - 2¹⁸ = 1288026953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1288289017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23857179 + ... + 23857232.

It is an arithmetic number, because the mean of its divisors is an integer number (238572060).

Almost surely, 2^1288289097 is an apocalyptic number.

It is an amenable number.

1288289097 is a deficient number, since it is larger than the sum of its proper divisors (620287383).

1288289097 is an equidigital number, since it uses as much as digits as its factorization.

1288289097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47714420 (or 47714414 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 1288289097 is about 35892.7443503558. The cubic root of 1288289097 is about 1088.1057628700.

The spelling of 1288289097 in words is "one billion, two hundred eighty-eight million, two hundred eighty-nine thousand, ninety-seven".