161893324 has 12 divisors (see below), whose sum is σ = 284022648. Its totient is φ = 80744000.

The previous prime is 161893313. The next prime is 161893331. The reversal of 161893324 is 423398161.

161893324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 48862 + ... + 52069.

It is an arithmetic number, because the mean of its divisors is an integer number (23668554).

Almost surely, 2^161893324 is an apocalyptic number.

It is an amenable number.

161893324 is a deficient number, since it is larger than the sum of its proper divisors (122129324).

161893324 is a wasteful number, since it uses less digits than its factorization.

161893324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101336 (or 101334 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 161893324 is about 12723.7307421998. The cubic root of 161893324 is about 545.0164953064.

The spelling of 161893324 in words is "one hundred sixty-one million, eight hundred ninety-three thousand, three hundred twenty-four".