235520161 has 8 divisors (see below), whose sum is σ = 248059584. Its totient is φ = 223172400.

The previous prime is 235520141. The next prime is 235520177. The reversal of 235520161 is 161025532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-235520161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235520141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45390 + ... + 50311.

It is an arithmetic number, because the mean of its divisors is an integer number (31007448).

Almost surely, 2^235520161 is an apocalyptic number.

It is an amenable number.

235520161 is a deficient number, since it is larger than the sum of its proper divisors (12539423).

235520161 is a wasteful number, since it uses less digits than its factorization.

235520161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95831.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 235520161 is about 15346.6661200405. Note that the first 3 decimals coincide. The cubic root of 235520161 is about 617.5555510679. Note that the first 5 decimals are identical.

Adding to 235520161 its reverse (161025532), we get a palindrome (396545693).

The spelling of 235520161 in words is "two hundred thirty-five million, five hundred twenty thousand, one hundred sixty-one".