161346005 has 8 divisors (see below), whose sum is σ = 203805600. Its totient is φ = 122283216.

The previous prime is 161345981. The next prime is 161346047. The reversal of 161346005 is 500643161.

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 161346005 - 2²⁰ = 160297429 is a prime.

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, 849095 + ... + 849284.

It is an arithmetic number, because the mean of its divisors is an integer number (25475700).

Almost surely, 2^161346005 is an apocalyptic number.

It is an amenable number.

161346005 is a deficient number, since it is larger than the sum of its proper divisors (42459595).

161346005 is a wasteful number, since it uses less digits than its factorization.

161346005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1698403.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 161346005 is about 12702.2047298884. The cubic root of 161346005 is about 544.4016157789.

Adding to 161346005 its reverse (500643161), we get a palindrome (661989166).

The spelling of 161346005 in words is "one hundred sixty-one million, three hundred forty-six thousand, five".