1153811 has 2 divisors, whose sum is σ = 1153812. Its totient is φ = 1153810.

The previous prime is 1153799. The next prime is 1153849. The reversal of 1153811 is 1183511.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1153811 - 2¹⁴ = 1137427 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1153871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 576905 + 576906.

It is an arithmetic number, because the mean of its divisors is an integer number (576906).

2^1153811 is an apocalyptic number.

1153811 is a deficient number, since it is larger than the sum of its proper divisors (1).

1153811 is an equidigital number, since it uses as much as digits as its factorization.

1153811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 20.

The square root of 1153811 is about 1074.1559477096. The cubic root of 1153811 is about 104.8845594462.

The spelling of 1153811 in words is "one million, one hundred fifty-three thousand, eight hundred eleven".