1288167 has 4 divisors (see below), whose sum is σ = 1717560. Its totient is φ = 858776.

The previous prime is 1288163. The next prime is 1288169. The reversal of 1288167 is 7618821.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1288167 - 2² = 1288163 is a prime.

It is a super-3 number, since 3×1288167³ = 6412653332135260389, which contains 333 as substring.

It is an Ulam number.

It is a D-number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1288163) 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, 214692 + ... + 214697.

It is an arithmetic number, because the mean of its divisors is an integer number (429390).

2^1288167 is an apocalyptic number.

1288167 is a deficient number, since it is larger than the sum of its proper divisors (429393).

1288167 is an equidigital number, since it uses as much as digits as its factorization.

1288167 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429392.

The product of its digits is 5376, while the sum is 33.

The square root of 1288167 is about 1134.9744490516. The cubic root of 1288167 is about 108.8071386878.

The spelling of 1288167 in words is "one million, two hundred eighty-eight thousand, one hundred sixty-seven".