1288875 has 32 divisors (see below), whose sum is σ = 2456064. Its totient is φ = 588000.

The previous prime is 1288873. The next prime is 1288877. The reversal of 1288875 is 5788821.

It is an interprime number because it is at equal distance from previous prime (1288873) and next prime (1288877).

It is not a de Polignac number, because 1288875 - 2¹ = 1288873 is a prime.

It is a super-2 number, since 2×1288875² = 3322397531250, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

1288875 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2380 + ... + 2870.

It is an arithmetic number, because the mean of its divisors is an integer number (76752).

2^1288875 is an apocalyptic number.

1288875 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1288875 is a deficient number, since it is larger than the sum of its proper divisors (1167189).

1288875 is an equidigital number, since it uses as much as digits as its factorization.

1288875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 516 (or 506 counting only the distinct ones).

The product of its digits is 35840, while the sum is 39.

The square root of 1288875 is about 1135.2863075013. The cubic root of 1288875 is about 108.8270691640.

The spelling of 1288875 in words is "one million, two hundred eighty-eight thousand, eight hundred seventy-five".