1186121 has 2 divisors, whose sum is σ = 1186122. Its totient is φ = 1186120.

The previous prime is 1186117. The next prime is 1186127. The reversal of 1186121 is 1216811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640000 + 546121 = 800^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 1186121 - 2² = 1186117 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1186093 and 1186102.

It is not a weakly prime, because it can be changed into another prime (1186127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 593060 + 593061.

It is an arithmetic number, because the mean of its divisors is an integer number (593061).

2^1186121 is an apocalyptic number.

It is an amenable number.

1186121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1186121 is an equidigital number, since it uses as much as digits as its factorization.

1186121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 20.

The square root of 1186121 is about 1089.0918234933. The cubic root of 1186121 is about 105.8545828468.

The spelling of 1186121 in words is "one million, one hundred eighty-six thousand, one hundred twenty-one".