1181461 has 2 divisors, whose sum is σ = 1181462. Its totient is φ = 1181460.

The previous prime is 1181443. The next prime is 1181471. The reversal of 1181461 is 1641811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1102500 + 78961 = 1050^2 + 281^2 .

It is an emirp because it is prime and its reverse (1641811) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1181461 - 2¹¹ = 1179413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1181471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 590730 + 590731.

It is an arithmetic number, because the mean of its divisors is an integer number (590731).

2^1181461 is an apocalyptic number.

It is an amenable number.

1181461 is a deficient number, since it is larger than the sum of its proper divisors (1).

1181461 is an equidigital number, since it uses as much as digits as its factorization.

1181461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 192, while the sum is 22.

The square root of 1181461 is about 1086.9503208519. The cubic root of 1181461 is about 105.7157747016.

The spelling of 1181461 in words is "one million, one hundred eighty-one thousand, four hundred sixty-one".