161302733 has 8 divisors (see below), whose sum is σ = 165480000. Its totient is φ = 157137120.

The previous prime is 161302717. The next prime is 161302741. The reversal of 161302733 is 337203161.

161302733 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161302733 - 2⁴ = 161302717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161302763) 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, 29768 + ... + 34766.

It is an arithmetic number, because the mean of its divisors is an integer number (20685000).

Almost surely, 2^161302733 is an apocalyptic number.

It is an amenable number.

161302733 is a deficient number, since it is larger than the sum of its proper divisors (4177267).

161302733 is an equidigital number, since it uses as much as digits as its factorization.

161302733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 161302733 is about 12700.5012893193. The cubic root of 161302733 is about 544.3529430460.

Adding to 161302733 its reverse (337203161), we get a palindrome (498505894).

The spelling of 161302733 in words is "one hundred sixty-one million, three hundred two thousand, seven hundred thirty-three".