161928102 has 16 divisors (see below), whose sum is σ = 370121472. Its totient is φ = 46265160.

The previous prime is 161928101. The next prime is 161928131. The reversal of 161928102 is 201829161.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 161928102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161928101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1927674 + ... + 1927757.

It is an arithmetic number, because the mean of its divisors is an integer number (23132592).

Almost surely, 2^161928102 is an apocalyptic number.

161928102 is an abundant number, since it is smaller than the sum of its proper divisors (208193370).

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

161928102 is a wasteful number, since it uses less digits than its factorization.

161928102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3855443.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 161928102 is about 12725.0973277221. The cubic root of 161928102 is about 545.0555194121.

The spelling of 161928102 in words is "one hundred sixty-one million, nine hundred twenty-eight thousand, one hundred two".