1161073 has 4 divisors (see below), whose sum is σ = 1201140. Its totient is φ = 1121008.

The previous prime is 1161059. The next prime is 1161077. The reversal of 1161073 is 3701611.

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: 3701611 = 73 ⋅50707.

It can be written as a sum of positive squares in 2 ways, for example, as 760384 + 400689 = 872^2 + 633^2 .

It is a cyclic number.

It is not a de Polignac number, because 1161073 - 2¹³ = 1152881 is a prime.

It is a super-2 number, since 2×1161073² = 2696181022658, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1161073.

It is not an unprimeable number, because it can be changed into a prime (1161077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19990 + ... + 20047.

It is an arithmetic number, because the mean of its divisors is an integer number (300285).

2^1161073 is an apocalyptic number.

It is an amenable number.

1161073 is a deficient number, since it is larger than the sum of its proper divisors (40067).

1161073 is an equidigital number, since it uses as much as digits as its factorization.

1161073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40066.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1161073 is about 1077.5309740328. The cubic root of 1161073 is about 105.1041445911.

Adding to 1161073 its reverse (3701611), we get a palindrome (4862684).

The spelling of 1161073 in words is "one million, one hundred sixty-one thousand, seventy-three".