1288468597 has 4 divisors (see below), whose sum is σ = 1387581580. Its totient is φ = 1189355616.

The previous prime is 1288468589. The next prime is 1288468633. The reversal of 1288468597 is 7958648821.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7958648821 = 17 ⋅468155813.

It can be written as a sum of positive squares in 2 ways, for example, as 58844241 + 1229624356 = 7671^2 + 35066^2 .

It is a cyclic number.

It is not a de Polignac number, because 1288468597 - 2³ = 1288468589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288468507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49556472 + ... + 49556497.

It is an arithmetic number, because the mean of its divisors is an integer number (346895395).

Almost surely, 2^1288468597 is an apocalyptic number.

It is an amenable number.

1288468597 is a deficient number, since it is larger than the sum of its proper divisors (99112983).

1288468597 is an equidigital number, since it uses as much as digits as its factorization.

1288468597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99112982.

The product of its digits is 7741440, while the sum is 58.

The square root of 1288468597 is about 35895.2447686320. The cubic root of 1288468597 is about 1088.1562965363.

The spelling of 1288468597 in words is "one billion, two hundred eighty-eight million, four hundred sixty-eight thousand, five hundred ninety-seven".