161230332 has 12 divisors (see below), whose sum is σ = 376204136. Its totient is φ = 53743440.

The previous prime is 161230319. The next prime is 161230357. The reversal of 161230332 is 233032161.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 161230299 and 161230308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6717919 + ... + 6717942.

Almost surely, 2^161230332 is an apocalyptic number.

161230332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

161230332 is an abundant number, since it is smaller than the sum of its proper divisors (214973804).

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

161230332 is a wasteful number, since it uses less digits than its factorization.

161230332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13435868 (or 13435866 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 161230332 is about 12697.6506488405. The cubic root of 161230332 is about 544.2714862828.

Adding to 161230332 its reverse (233032161), we get a palindrome (394262493).

The spelling of 161230332 in words is "one hundred sixty-one million, two hundred thirty thousand, three hundred thirty-two".