161930353 has 8 divisors (see below), whose sum is σ = 174540800. Its totient is φ = 149341968.

The previous prime is 161930347. The next prime is 161930393. The reversal of 161930353 is 353039161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161930353 - 2²⁵ = 128375921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161930333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11758 + ... + 21496.

It is an arithmetic number, because the mean of its divisors is an integer number (21817600).

Almost surely, 2^161930353 is an apocalyptic number.

161930353 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

161930353 is a deficient number, since it is larger than the sum of its proper divisors (12610447).

161930353 is a wasteful number, since it uses less digits than its factorization.

161930353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11031.

The product of its (nonzero) digits is 7290, while the sum is 31.

The square root of 161930353 is about 12725.1857746754. The cubic root of 161930353 is about 545.0580450480.

The spelling of 161930353 in words is "one hundred sixty-one million, nine hundred thirty thousand, three hundred fifty-three".