1288468547 has 4 divisors (see below), whose sum is σ = 1293120336. Its totient is φ = 1283816760.

The previous prime is 1288468529. The next prime is 1288468561. The reversal of 1288468547 is 7458648821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1288468547 is a prime.

It is a super-5 number, since 5×1288468547⁵ (a number of 47 digits) contains 55555 as substring.

It is a Duffinian 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, 2325479 + ... + 2326032.

It is an arithmetic number, because the mean of its divisors is an integer number (323280084).

Almost surely, 2^1288468547 is an apocalyptic number.

1288468547 is a deficient number, since it is larger than the sum of its proper divisors (4651789).

1288468547 is an equidigital number, since it uses as much as digits as its factorization.

1288468547 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651788.

The product of its digits is 3440640, while the sum is 53.

The square root of 1288468547 is about 35895.2440721609. The cubic root of 1288468547 is about 1088.1562824607.

The spelling of 1288468547 in words is "one billion, two hundred eighty-eight million, four hundred sixty-eight thousand, five hundred forty-seven".