1161938 has 4 divisors (see below), whose sum is σ = 1742910. Its totient is φ = 580968.

The previous prime is 1161931. The next prime is 1161947. The reversal of 1161938 is 8391611.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8391611 = 1753 ⋅4787.

It can be written as a sum of positive squares in only one way, i.e., 1151329 + 10609 = 1073^2 + 103^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161938.

It is not an unprimeable number, because it can be changed into a prime (1161931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 290483 + ... + 290486.

2^1161938 is an apocalyptic number.

1161938 is a deficient number, since it is larger than the sum of its proper divisors (580972).

1161938 is an equidigital number, since it uses as much as digits as its factorization.

1161938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580971.

The product of its digits is 1296, while the sum is 29.

The square root of 1161938 is about 1077.9322798766. The cubic root of 1161938 is about 105.1302389932.

The spelling of 1161938 in words is "one million, one hundred sixty-one thousand, nine hundred thirty-eight".