1128497 has 2 divisors, whose sum is σ = 1128498. Its totient is φ = 1128496.

The previous prime is 1128451. The next prime is 1128499. The reversal of 1128497 is 7948211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1062961 + 65536 = 1031^2 + 256^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128497 - 2⁶ = 1128433 is a prime.

Together with 1128499, 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 (1128499) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564248 + 564249.

It is an arithmetic number, because the mean of its divisors is an integer number (564249).

2^1128497 is an apocalyptic number.

It is an amenable number.

1128497 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128497 is an equidigital number, since it uses as much as digits as its factorization.

1128497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 32.

The square root of 1128497 is about 1062.3073943073. The cubic root of 1128497 is about 104.1118434359. Note that the first 3 decimals are identical.

The spelling of 1128497 in words is "one million, one hundred twenty-eight thousand, four hundred ninety-seven".