161595546 has 32 divisors (see below), whose sum is σ = 371589120. Its totient is φ = 45891696.

The previous prime is 161595517. The next prime is 161595571. The reversal of 161595546 is 645595161.

It is a super-2 number, since 2×161595546² = 52226240974076232, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 161595498 and 161595507.

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 15 ways as a sum of consecutive naturals, for example, 4506 + ... + 18533.

It is an arithmetic number, because the mean of its divisors is an integer number (11612160).

Almost surely, 2^161595546 is an apocalyptic number.

161595546 is an abundant number, since it is smaller than the sum of its proper divisors (209993574).

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

161595546 is a wasteful number, since it uses less digits than its factorization.

161595546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23218.

The product of its digits is 162000, while the sum is 42.

The square root of 161595546 is about 12712.0236783920. The cubic root of 161595546 is about 544.6821320671.

The spelling of 161595546 in words is "one hundred sixty-one million, five hundred ninety-five thousand, five hundred forty-six".