161002 has 8 divisors (see below), whose sum is σ = 244800. Its totient is φ = 79404.

The previous prime is 160997. The next prime is 161009. The reversal of 161002 is 200161.

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

It is a nialpdrome in base 11.

It is a zygodrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 161002.

It is not an unprimeable number, because it can be changed into a prime (161009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 352 + ... + 667.

It is an arithmetic number, because the mean of its divisors is an integer number (30600).

2¹⁶¹⁰⁰² is an apocalyptic number.

161002 is a deficient number, since it is larger than the sum of its proper divisors (83798).

161002 is a wasteful number, since it uses less digits than its factorization.

161002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 161002 is about 401.2505451710. The cubic root of 161002 is about 54.4014435171.

Adding to 161002 its reverse (200161), we get a palindrome (361163).

The spelling of 161002 in words is "one hundred sixty-one thousand, two".