161005102 has 8 divisors (see below), whose sum is σ = 242166816. Its totient is φ = 80282832.

The previous prime is 161005049. The next prime is 161005133. The reversal of 161005102 is 201500161.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108943 + ... + 110410.

It is an arithmetic number, because the mean of its divisors is an integer number (30270852).

Almost surely, 2^161005102 is an apocalyptic number.

161005102 is a deficient number, since it is larger than the sum of its proper divisors (81161714).

161005102 is a wasteful number, since it uses less digits than its factorization.

161005102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219722.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 161005102 is about 12688.7785858214. The cubic root of 161005102 is about 544.0179289614.

Adding to 161005102 its reverse (201500161), we get a palindrome (362505263).

The spelling of 161005102 in words is "one hundred sixty-one million, five thousand, one hundred two".