161314236 has 18 divisors (see below), whose sum is σ = 407766632. Its totient is φ = 53771400.

The previous prime is 161314229. The next prime is 161314247. The reversal of 161314236 is 632413161.

161314236 is a `hidden beast` number, since 1 + 613 + 1 + 42 + 3 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2240440 + ... + 2240511.

Almost surely, 2^161314236 is an apocalyptic number.

It is an amenable number.

161314236 is an abundant number, since it is smaller than the sum of its proper divisors (246452396).

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

161314236 is a wasteful number, since it uses less digits than its factorization.

161314236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4480961 (or 4480956 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 161314236 is about 12700.9541373867. The cubic root of 161314236 is about 544.3658825727.

Adding to 161314236 its reverse (632413161), we get a palindrome (793727397).

The spelling of 161314236 in words is "one hundred sixty-one million, three hundred fourteen thousand, two hundred thirty-six".