161348586 has 32 divisors (see below), whose sum is σ = 371160960. Its totient is φ = 45804096.

The previous prime is 161348569. The next prime is 161348609. The reversal of 161348586 is 685843161.

161348586 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5641 + ... + 18828.

It is an arithmetic number, because the mean of its divisors is an integer number (11598780).

Almost surely, 2^161348586 is an apocalyptic number.

161348586 is an abundant number, since it is smaller than the sum of its proper divisors (209812374).

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

161348586 is a wasteful number, since it uses less digits than its factorization.

161348586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24638.

The product of its digits is 138240, while the sum is 42.

The square root of 161348586 is about 12702.3063260181. The cubic root of 161348586 is about 544.4045186357.

The spelling of 161348586 in words is "one hundred sixty-one million, three hundred forty-eight thousand, five hundred eighty-six".