1161342 has 48 divisors (see below), whose sum is σ = 3101280. Its totient is φ = 305856.

The previous prime is 1161331. The next prime is 1161343. The reversal of 1161342 is 2431611.

It is a happy number.

1161342 is a `hidden beast` number, since 11 + 613 + 42 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1284 + ... + 1992.

It is an arithmetic number, because the mean of its divisors is an integer number (64610).

2^1161342 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1550640).

1161342 is an abundant number, since it is smaller than the sum of its proper divisors (1939938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161342 is a wasteful number, since it uses less digits than its factorization.

1161342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 737 (or 734 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 1161342 is about 1077.6557892017. The cubic root of 1161342 is about 105.1122608857.

Adding to 1161342 its reverse (2431611), we get a palindrome (3592953).

The spelling of 1161342 in words is "one million, one hundred sixty-one thousand, three hundred forty-two".