161123346 has 24 divisors (see below), whose sum is σ = 349410204. Its totient is φ = 53660160.

The previous prime is 161123329. The next prime is 161123351. The reversal of 161123346 is 643321161.

161123346 is a `hidden beast` number, since 1 + 611 + 2 + 3 + 3 + 46 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 156875625 + 4247721 = 12525^2 + 2061^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 21210 + ... + 27786.

Almost surely, 2^161123346 is an apocalyptic number.

161123346 is an abundant number, since it is smaller than the sum of its proper divisors (188286858).

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

161123346 is a wasteful number, since it uses less digits than its factorization.

161123346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7946 (or 7943 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 161123346 is about 12693.4371231751. The cubic root of 161123346 is about 544.1510740485.

The spelling of 161123346 in words is "one hundred sixty-one million, one hundred twenty-three thousand, three hundred forty-six".