235481161 has 4 divisors (see below), whose sum is σ = 249333012. Its totient is φ = 221629312.

The previous prime is 235481159. The next prime is 235481171. The reversal of 235481161 is 161184532.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 134096400 + 101384761 = 11580^2 + 10069^2 .

It is a cyclic number.

It is not a de Polignac number, because 235481161 - 2¹ = 235481159 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235481111) 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, 6925900 + ... + 6925933.

It is an arithmetic number, because the mean of its divisors is an integer number (62333253).

Almost surely, 2^235481161 is an apocalyptic number.

It is an amenable number.

235481161 is a deficient number, since it is larger than the sum of its proper divisors (13851851).

235481161 is a wasteful number, since it uses less digits than its factorization.

235481161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13851850.

The product of its digits is 5760, while the sum is 31.

The square root of 235481161 is about 15345.3954331584. The cubic root of 235481161 is about 617.5214619891.

The spelling of 235481161 in words is "two hundred thirty-five million, four hundred eighty-one thousand, one hundred sixty-one".