1943131 has 2 divisors, whose sum is σ = 1943132. Its totient is φ = 1943130.

The previous prime is 1943107. The next prime is 1943141. The reversal of 1943131 is 1313491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1943131 - 2¹¹ = 1941083 is a prime.

It is a super-2 number, since 2×1943131² = 7551516166322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1943101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971565 + 971566.

It is an arithmetic number, because the mean of its divisors is an integer number (971566).

2^1943131 is an apocalyptic number.

1943131 is a deficient number, since it is larger than the sum of its proper divisors (1).

1943131 is an equidigital number, since it uses as much as digits as its factorization.

1943131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 22.

The square root of 1943131 is about 1393.9623380852. The cubic root of 1943131 is about 124.7864299772.

The spelling of 1943131 in words is "one million, nine hundred forty-three thousand, one hundred thirty-one".