161732541 has 16 divisors (see below), whose sum is σ = 227298240. Its totient is φ = 102009600.

The previous prime is 161732539. The next prime is 161732561. The reversal of 161732541 is 145237161.

It is not a de Polignac number, because 161732541 - 2¹ = 161732539 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 161732499 and 161732508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161732561) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56341 + ... + 59141.

It is an arithmetic number, because the mean of its divisors is an integer number (14206140).

Almost surely, 2^161732541 is an apocalyptic number.

It is an amenable number.

161732541 is a deficient number, since it is larger than the sum of its proper divisors (65565699).

161732541 is a wasteful number, since it uses less digits than its factorization.

161732541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3836.

The product of its digits is 5040, while the sum is 30.

The square root of 161732541 is about 12717.4109393382. The cubic root of 161732541 is about 544.8360093533.

The spelling of 161732541 in words is "one hundred sixty-one million, seven hundred thirty-two thousand, five hundred forty-one".