1161603234 has 128 divisors (see below), whose sum is σ = 3063225600. Its totient is φ = 322237440.

The previous prime is 1161603221. The next prime is 1161603241. The reversal of 1161603234 is 4323061611.

1161603234 is a `hidden beast` number, since 11 + 616 + 0 + 3 + 2 + 34 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1161603198 and 1161603207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 372072 + ... + 375180.

It is an arithmetic number, because the mean of its divisors is an integer number (23931450).

Almost surely, 2^1161603234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1161603234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1531612800).

1161603234 is an abundant number, since it is smaller than the sum of its proper divisors (1901622366).

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

1161603234 is a wasteful number, since it uses less digits than its factorization.

1161603234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3185 (or 3179 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1161603234 is about 34082.3008906382. The cubic root of 1161603234 is about 1051.2014166439.

Adding to 1161603234 its reverse (4323061611), we get a palindrome (5484664845).

The spelling of 1161603234 in words is "one billion, one hundred sixty-one million, six hundred three thousand, two hundred thirty-four".