161967324 has 24 divisors (see below), whose sum is σ = 397815040. Its totient is φ = 51147504.

The previous prime is 161967319. The next prime is 161967359. The reversal of 161967324 is 423769161.

161967324 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 354964 + ... + 355419.

Almost surely, 2^161967324 is an apocalyptic number.

It is an amenable number.

161967324 is an abundant number, since it is smaller than the sum of its proper divisors (235847716).

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

161967324 is a wasteful number, since it uses less digits than its factorization.

161967324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 710409 (or 710407 counting only the distinct ones).

The product of its digits is 54432, while the sum is 39.

The square root of 161967324 is about 12726.6383621128. The cubic root of 161967324 is about 545.0995233897.

The spelling of 161967324 in words is "one hundred sixty-one million, nine hundred sixty-seven thousand, three hundred twenty-four".