1161321134 has 8 divisors (see below), whose sum is σ = 1742177208. Its totient is φ = 580595400.

The previous prime is 1161321103. The next prime is 1161321179. The reversal of 1161321134 is 4311231611.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5957 + ... + 48560.

It is an arithmetic number, because the mean of its divisors is an integer number (217772151).

Almost surely, 2^1161321134 is an apocalyptic number.

1161321134 is a deficient number, since it is larger than the sum of its proper divisors (580856074).

1161321134 is a wasteful number, since it uses less digits than its factorization.

1161321134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65170.

The product of its digits is 432, while the sum is 23.

The square root of 1161321134 is about 34078.1621276735. The cubic root of 1161321134 is about 1051.1163135956.

Adding to 1161321134 its reverse (4311231611), we get a palindrome (5472552745).

The spelling of 1161321134 in words is "one billion, one hundred sixty-one million, three hundred twenty-one thousand, one hundred thirty-four".