161200024 has 16 divisors (see below), whose sum is σ = 302569920. Its totient is φ = 80514720.

The previous prime is 161200021. The next prime is 161200043. The reversal of 161200024 is 420002161.

It is a junction number, because it is equal to n+sod(n) for n = 161199980 and 161200007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161200021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 18094.

It is an arithmetic number, because the mean of its divisors is an integer number (18910620).

Almost surely, 2^161200024 is an apocalyptic number.

It is an amenable number.

161200024 is a deficient number, since it is larger than the sum of its proper divisors (141369896).

161200024 is a wasteful number, since it uses less digits than its factorization.

161200024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21330 (or 21326 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 161200024 is about 12696.4571436287. The cubic root of 161200024 is about 544.2373801818.

Adding to 161200024 its reverse (420002161), we get a palindrome (581202185).

The spelling of 161200024 in words is "one hundred sixty-one million, two hundred thousand, twenty-four".