1128007 has 4 divisors (see below), whose sum is σ = 1132560. Its totient is φ = 1123456.

The previous prime is 1127993. The next prime is 1128031. The reversal of 1128007 is 7008211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7008211 = 7 ⋅1001173.

It is a cyclic number.

It is not a de Polignac number, because 1128007 - 2¹⁵ = 1095239 is a prime.

It is a Duffinian number.

1128007 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1128037) 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, 1882 + ... + 2407.

It is an arithmetic number, because the mean of its divisors is an integer number (283140).

2^1128007 is an apocalyptic number.

1128007 is a deficient number, since it is larger than the sum of its proper divisors (4553).

1128007 is an equidigital number, since it uses as much as digits as its factorization.

1128007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4552.

The product of its (nonzero) digits is 112, while the sum is 19.

The square root of 1128007 is about 1062.0767392237. The cubic root of 1128007 is about 104.0967725972.

The spelling of 1128007 in words is "one million, one hundred twenty-eight thousand, seven".