161134205 has 8 divisors (see below), whose sum is σ = 201768192. Its totient is φ = 123302608.

The previous prime is 161134199. The next prime is 161134217. The reversal of 161134205 is 502431161.

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

It is a cyclic number.

It is not a de Polignac number, because 161134205 - 2⁸ = 161133949 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 700469 + ... + 700698.

It is an arithmetic number, because the mean of its divisors is an integer number (25221024).

Almost surely, 2^161134205 is an apocalyptic number.

It is an amenable number.

161134205 is a deficient number, since it is larger than the sum of its proper divisors (40633987).

161134205 is a wasteful number, since it uses less digits than its factorization.

161134205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401195.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 161134205 is about 12693.8648566936. The cubic root of 161134205 is about 544.1632982314.

Adding to 161134205 its reverse (502431161), we get a palindrome (663565366).

The spelling of 161134205 in words is "one hundred sixty-one million, one hundred thirty-four thousand, two hundred five".