161349353 has 4 divisors (see below), whose sum is σ = 176017488. Its totient is φ = 146681220.

The previous prime is 161349323. The next prime is 161349361. The reversal of 161349353 is 353943161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161349353 - 2¹⁰ = 161348329 is a prime.

It is a super-2 number, since 2×161349353² = 52067227427037218, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (161349323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7334051 + ... + 7334072.

It is an arithmetic number, because the mean of its divisors is an integer number (44004372).

Almost surely, 2^161349353 is an apocalyptic number.

It is an amenable number.

161349353 is a deficient number, since it is larger than the sum of its proper divisors (14668135).

161349353 is a wasteful number, since it uses less digits than its factorization.

161349353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14668134.

The product of its digits is 29160, while the sum is 35.

The square root of 161349353 is about 12702.3365173499. The cubic root of 161349353 is about 544.4053812765.

The spelling of 161349353 in words is "one hundred sixty-one million, three hundred forty-nine thousand, three hundred fifty-three".