1161330326 has 16 divisors (see below), whose sum is σ = 1919624784. Its totient is φ = 523533024.

The previous prime is 1161330319. The next prime is 1161330337. The reversal of 1161330326 is 6230331611.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1161330295 and 1161330304.

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, 518261 + ... + 520496.

It is an arithmetic number, because the mean of its divisors is an integer number (119976549).

Almost surely, 2^1161330326 is an apocalyptic number.

1161330326 is a deficient number, since it is larger than the sum of its proper divisors (758294458).

1161330326 is a wasteful number, since it uses less digits than its factorization.

1161330326 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038815.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 1161330326 is about 34078.2969938347. The cubic root of 1161330326 is about 1051.1190868267.

Adding to 1161330326 its reverse (6230331611), we get a palindrome (7391661937).

The spelling of 1161330326 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, three hundred twenty-six".