1288572965 has 8 divisors (see below), whose sum is σ = 1568066688. Its totient is φ = 1016338960.

The previous prime is 1288572937. The next prime is 1288572973. The reversal of 1288572965 is 5692758821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1288572965 - 2²⁸ = 1020137509 is a prime.

It is a super-2 number, since 2×1288572965² = 3320840572257782450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1814537 + ... + 1815246.

It is an arithmetic number, because the mean of its divisors is an integer number (196008336).

Almost surely, 2^1288572965 is an apocalyptic number.

It is an amenable number.

1288572965 is a deficient number, since it is larger than the sum of its proper divisors (279493723).

1288572965 is an equidigital number, since it uses as much as digits as its factorization.

1288572965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3629859.

The product of its digits is 2419200, while the sum is 53.

The square root of 1288572965 is about 35896.6985250733. The cubic root of 1288572965 is about 1088.1856765384.

The spelling of 1288572965 in words is "one billion, two hundred eighty-eight million, five hundred seventy-two thousand, nine hundred sixty-five".