235396161 has 192 divisors, whose sum is σ = 509483520. Its totient is φ = 100638720.

The previous prime is 235396157. The next prime is 235396177. The reversal of 235396161 is 161693532.

235396161 is a `hidden beast` number, since 2 + 3 + 5 + 39 + 616 + 1 = 666.

It is not a de Polignac number, because 235396161 - 2² = 235396157 is a prime.

It is a super-2 number, since 2×235396161² = 110822705227075842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (235396141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 4441411 + ... + 4441463.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^235396161 is an apocalyptic number.

235396161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

235396161 is an abundant number, since it is smaller than the sum of its proper divisors (274087359).

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

235396161 is a wasteful number, since it uses less digits than its factorization.

235396161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136 (or 133 counting only the distinct ones).

The product of its digits is 29160, while the sum is 36.

The square root of 235396161 is about 15342.6256227544. The cubic root of 235396161 is about 617.4471522355.

The spelling of 235396161 in words is "two hundred thirty-five million, three hundred ninety-six thousand, one hundred sixty-one".