161748028 has 24 divisors (see below), whose sum is σ = 310005360. Its totient is φ = 73386240.

The previous prime is 161748001. The next prime is 161748077. The reversal of 161748028 is 820847161.

161748028 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

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 7 ways as a sum of consecutive naturals, for example, 23293 + ... + 29428.

It is an arithmetic number, because the mean of its divisors is an integer number (12916890).

Almost surely, 2^161748028 is an apocalyptic number.

It is an amenable number.

161748028 is a deficient number, since it is larger than the sum of its proper divisors (148257332).

161748028 is a wasteful number, since it uses less digits than its factorization.

161748028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52797 (or 52795 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 37.

The square root of 161748028 is about 12718.0198144208. The cubic root of 161748028 is about 544.8533993930.

The spelling of 161748028 in words is "one hundred sixty-one million, seven hundred forty-eight thousand, twenty-eight".