1161434 has 4 divisors (see below), whose sum is σ = 1742154.
Its totient is φ = 580716.
The previous prime is 1161403. The next prime is 1161437. The reversal of 1161434 is 4341611.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4341611 = 229 ⋅18959.
It can be written as a sum of positive squares in only one way, i.e., 855625 + 305809 = 925^2 + 553^2
It is a Curzon number.
It is not an unprimeable number, because it can be changed into a prime (1161437) 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, 290357 + ... + 290360.
21161434 is an apocalyptic number.
1161434 is a deficient number, since it is larger than the sum of its proper divisors (580720).
1161434 is an equidigital number, since it uses as much as digits as its factorization.
1161434 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 580719.
The product of its digits is 288, while the sum is 20.
The square root of 1161434 is about 1077.6984736001.
The cubic root of 1161434 is about 105.1150364312.
The spelling of 1161434 in words is "one million, one hundred sixty-one thousand, four hundred thirty-four".