161506192 has 10 divisors (see below), whose sum is σ = 312918278. Its totient is φ = 80753088.

The previous prime is 161506181. The next prime is 161506193. The reversal of 161506192 is 291605161.

161506192 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 82011136 + 79495056 = 9056^2 + 8916^2 .

It is not an unprimeable number, because it can be changed into a prime (161506193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5047053 + ... + 5047084.

Almost surely, 2^161506192 is an apocalyptic number.

It is an amenable number.

161506192 is a deficient number, since it is larger than the sum of its proper divisors (151412086).

161506192 is a wasteful number, since it uses less digits than its factorization.

161506192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10094145 (or 10094139 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 161506192 is about 12708.5086457853. The cubic root of 161506192 is about 544.5817198512.

The spelling of 161506192 in words is "one hundred sixty-one million, five hundred six thousand, one hundred ninety-two".