1161330142 has 16 divisors (see below), whose sum is σ = 1995729120. Its totient is φ = 496493568.

The previous prime is 1161330113. The next prime is 1161330151. The reversal of 1161330142 is 2410331611.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95683 + ... + 107134.

It is an arithmetic number, because the mean of its divisors is an integer number (124733070).

Almost surely, 2^1161330142 is an apocalyptic number.

1161330142 is a deficient number, since it is larger than the sum of its proper divisors (834398978).

1161330142 is a wasteful number, since it uses less digits than its factorization.

1161330142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203235.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1161330142 is about 34078.2942941691. The cubic root of 1161330142 is about 1051.1190313139.

Adding to 1161330142 its reverse (2410331611), we get a palindrome (3571661753).

The spelling of 1161330142 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, one hundred forty-two".