1288875907 has 12 divisors (see below), whose sum is σ = 1421777448. Its totient is φ = 1167504800.

The previous prime is 1288875899. The next prime is 1288875911. The reversal of 1288875907 is 7095788821.

It is not a de Polignac number, because 1288875907 - 2³ = 1288875899 is a prime.

It is a super-2 number, since 2×1288875907² = 3322402207290145298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1288875967) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15048 + ... + 52954.

It is an arithmetic number, because the mean of its divisors is an integer number (118481454).

Almost surely, 2^1288875907 is an apocalyptic number.

1288875907 is a deficient number, since it is larger than the sum of its proper divisors (132901541).

1288875907 is a wasteful number, since it uses less digits than its factorization.

1288875907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38210 (or 38199 counting only the distinct ones).

The product of its (nonzero) digits is 2257920, while the sum is 55.

The square root of 1288875907 is about 35900.9179130562. The cubic root of 1288875907 is about 1088.2709469172.

The spelling of 1288875907 in words is "one billion, two hundred eighty-eight million, eight hundred seventy-five thousand, nine hundred seven".