161395546 has 16 divisors (see below), whose sum is σ = 260964648. Its totient is φ = 74419200.

The previous prime is 161395511. The next prime is 161395561. The reversal of 161395546 is 645593161.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69906321 + 91489225 = 8361^2 + 9565^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161395499 and 161395508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33106 + ... + 37666.

Almost surely, 2^161395546 is an apocalyptic number.

161395546 is a deficient number, since it is larger than the sum of its proper divisors (99569102).

161395546 is a wasteful number, since it uses less digits than its factorization.

161395546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5937.

The product of its digits is 97200, while the sum is 40.

The square root of 161395546 is about 12704.1546747511. The cubic root of 161395546 is about 544.4573292553.

The spelling of 161395546 in words is "one hundred sixty-one million, three hundred ninety-five thousand, five hundred forty-six".