1243141 has 2 divisors, whose sum is σ = 1243142. Its totient is φ = 1243140.

The previous prime is 1243133. The next prime is 1243147. The reversal of 1243141 is 1413421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1147041 + 96100 = 1071^2 + 310^2 .

It is a cyclic number.

It is not a de Polignac number, because 1243141 - 2³ = 1243133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1243147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621570 + 621571.

It is an arithmetic number, because the mean of its divisors is an integer number (621571).

2^1243141 is an apocalyptic number.

It is an amenable number.

1243141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1243141 is an equidigital number, since it uses as much as digits as its factorization.

1243141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 16.

The square root of 1243141 is about 1114.9623312023. The cubic root of 1243141 is about 107.5243427837.

Adding to 1243141 its reverse (1413421), we get a palindrome (2656562).

The spelling of 1243141 in words is "one million, two hundred forty-three thousand, one hundred forty-one".