161113135 has 8 divisors (see below), whose sum is σ = 194107536. Its totient is φ = 128376000.

The previous prime is 161113109. The next prime is 161113151. The reversal of 161113135 is 531311161.

161113135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 161113135 - 2¹¹ = 161111087 is a prime.

It is a Duffinian number.

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, 62934 + ... + 65443.

It is an arithmetic number, because the mean of its divisors is an integer number (24263442).

Almost surely, 2^161113135 is an apocalyptic number.

161113135 is a deficient number, since it is larger than the sum of its proper divisors (32994401).

161113135 is a wasteful number, since it uses less digits than its factorization.

161113135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128633.

The product of its digits is 270, while the sum is 22.

The square root of 161113135 is about 12693.0349010786. The cubic root of 161113135 is about 544.1395788304.

Adding to 161113135 its reverse (531311161), we get a palindrome (692424296).

The spelling of 161113135 in words is "one hundred sixty-one million, one hundred thirteen thousand, one hundred thirty-five".