1197121 has 2 divisors, whose sum is σ = 1197122. Its totient is φ = 1197120.

The previous prime is 1197113. The next prime is 1197167. The reversal of 1197121 is 1217911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1132096 + 65025 = 1064^2 + 255^2 .

It is a cyclic number.

It is not a de Polignac number, because 1197121 - 2³ = 1197113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1197092 and 1197101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1197181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598560 + 598561.

It is an arithmetic number, because the mean of its divisors is an integer number (598561).

2^1197121 is an apocalyptic number.

It is an amenable number.

1197121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1197121 is an equidigital number, since it uses as much as digits as its factorization.

1197121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 22.

The square root of 1197121 is about 1094.1302481880. The cubic root of 1197121 is about 106.1808056974.

The spelling of 1197121 in words is "one million, one hundred ninety-seven thousand, one hundred twenty-one".