161342734 has 8 divisors (see below), whose sum is σ = 276587568. Its totient is φ = 69146880.

The previous prime is 161342717. The next prime is 161342761. The reversal of 161342734 is 437243161.

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

It is a junction number, because it is equal to n+sod(n) for n = 161342696 and 161342705.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5762227 + ... + 5762254.

It is an arithmetic number, because the mean of its divisors is an integer number (34573446).

Almost surely, 2^161342734 is an apocalyptic number.

161342734 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

161342734 is a deficient number, since it is larger than the sum of its proper divisors (115244834).

161342734 is a wasteful number, since it uses less digits than its factorization.

161342734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11524490.

The product of its digits is 12096, while the sum is 31.

The square root of 161342734 is about 12702.0759720606. The cubic root of 161342734 is about 544.3979368329.

Adding to 161342734 its reverse (437243161), we get a palindrome (598585895).

The spelling of 161342734 in words is "one hundred sixty-one million, three hundred forty-two thousand, seven hundred thirty-four".