161764324 has 12 divisors (see below), whose sum is σ = 292219648. Its totient is φ = 78273000.

The previous prime is 161764319. The next prime is 161764387. The reversal of 161764324 is 423467161.

It is a self number, because there is not a number n which added to its sum of digits gives 161764324.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 652152 + ... + 652399.

Almost surely, 2^161764324 is an apocalyptic number.

It is an amenable number.

161764324 is a deficient number, since it is larger than the sum of its proper divisors (130455324).

161764324 is a wasteful number, since it uses less digits than its factorization.

161764324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304586 (or 1304584 counting only the distinct ones).

The product of its digits is 24192, while the sum is 34.

The square root of 161764324 is about 12718.6604640583. The cubic root of 161764324 is about 544.8716966441.

The spelling of 161764324 in words is "one hundred sixty-one million, seven hundred sixty-four thousand, three hundred twenty-four".