161036028 has 36 divisors (see below), whose sum is σ = 416995488. Its totient is φ = 52368960.

The previous prime is 161036027. The next prime is 161036081. The reversal of 161036028 is 820630161.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 161035992 and 161036010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161036021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 53076 + ... + 56027.

It is an arithmetic number, because the mean of its divisors is an integer number (11583208).

Almost surely, 2^161036028 is an apocalyptic number.

161036028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

161036028 is an abundant number, since it is smaller than the sum of its proper divisors (255959460).

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

161036028 is a wasteful number, since it uses less digits than its factorization.

161036028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109154 (or 109149 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 161036028 is about 12689.9971631203. The cubic root of 161036028 is about 544.0527585438.

Adding to 161036028 its reverse (820630161), we get a palindrome (981666189).

The spelling of 161036028 in words is "one hundred sixty-one million, thirty-six thousand, twenty-eight".