1128371 has 2 divisors, whose sum is σ = 1128372. Its totient is φ = 1128370.

The previous prime is 1128349. The next prime is 1128373. The reversal of 1128371 is 1738211.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1738211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1128371 is a prime.

It is a super-2 number, since 2×1128371² = 2546442227282, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1128373, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1128373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564185 + 564186.

It is an arithmetic number, because the mean of its divisors is an integer number (564186).

2^1128371 is an apocalyptic number.

1128371 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128371 is an equidigital number, since it uses as much as digits as its factorization.

1128371 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 23.

The square root of 1128371 is about 1062.2480877836. The cubic root of 1128371 is about 104.1079684941.

It can be divided in two parts, 11 and 28371, that added together give a palindrome (28382).

The spelling of 1128371 in words is "one million, one hundred twenty-eight thousand, three hundred seventy-one".