161343460 has 24 divisors (see below), whose sum is σ = 342180216. Its totient is φ = 63897600.

The previous prime is 161343449. The next prime is 161343461. The reversal of 161343460 is 64343161.

161343460 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 21678336 + 139665124 = 4656^2 + 11818^2 .

It is not an unprimeable number, because it can be changed into a prime (161343461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37917 + ... + 41956.

It is an arithmetic number, because the mean of its divisors is an integer number (14257509).

Almost surely, 2^161343460 is an apocalyptic number.

161343460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161343460 is an abundant number, since it is smaller than the sum of its proper divisors (180836756).

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

161343460 is a wasteful number, since it uses less digits than its factorization.

161343460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79983 (or 79981 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 161343460 is about 12702.1045500342. The cubic root of 161343460 is about 544.3987533810.

The spelling of 161343460 in words is "one hundred sixty-one million, three hundred forty-three thousand, four hundred sixty".