161234544 has 40 divisors (see below), whose sum is σ = 420357520. Its totient is φ = 53250048.

The previous prime is 161234537. The next prime is 161234561. The reversal of 161234544 is 445432161.

161234544 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 10177 + ... + 20640.

It is an arithmetic number, because the mean of its divisors is an integer number (10508938).

Almost surely, 2^161234544 is an apocalyptic number.

It is an amenable number.

161234544 is an abundant number, since it is smaller than the sum of its proper divisors (259122976).

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

161234544 is a wasteful number, since it uses less digits than its factorization.

161234544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30937 (or 30931 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 161234544 is about 12697.8165052106. The cubic root of 161234544 is about 544.2762257788.

The spelling of 161234544 in words is "one hundred sixty-one million, two hundred thirty-four thousand, five hundred forty-four".