161532006 has 8 divisors (see below), whose sum is σ = 323064024. Its totient is φ = 53844000.

The previous prime is 161531983. The next prime is 161532043. The reversal of 161532006 is 600235161.

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

161532006 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13460995 + ... + 13461006.

It is an arithmetic number, because the mean of its divisors is an integer number (40383003).

Almost surely, 2^161532006 is an apocalyptic number.

161532006 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

161532006 is a wasteful number, since it uses less digits than its factorization.

161532006 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26922006.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 161532006 is about 12709.5242239826. The cubic root of 161532006 is about 544.6107323273.

Adding to 161532006 its reverse (600235161), we get a palindrome (761767167).

The spelling of 161532006 in words is "one hundred sixty-one million, five hundred thirty-two thousand, six".