1123897 has 2 divisors, whose sum is σ = 1123898. Its totient is φ = 1123896.

The previous prime is 1123883. The next prime is 1123901. The reversal of 1123897 is 7983211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 477481 = 804^2 + 691^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561948 + 561949.

It is an arithmetic number, because the mean of its divisors is an integer number (561949).

2^1123897 is an apocalyptic number.

It is an amenable number.

1123897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123897 is an equidigital number, since it uses as much as digits as its factorization.

1123897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 31.

The square root of 1123897 is about 1060.1400850831. The cubic root of 1123897 is about 103.9701899276.

The spelling of 1123897 in words is "one million, one hundred twenty-three thousand, eight hundred ninety-seven".