235720481 has 4 divisors (see below), whose sum is σ = 235781700. Its totient is φ = 235659264.

The previous prime is 235720447. The next prime is 235720493. The reversal of 235720481 is 184027532.

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 114918400 + 120802081 = 10720^2 + 10991^2 .

It is a cyclic number.

It is not a de Polignac number, because 235720481 - 2²² = 231526177 is a prime.

It is a super-2 number, since 2×235720481² = 111128290325742722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (235720411) 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 3 ways as a sum of consecutive naturals, for example, 24416 + ... + 32673.

It is an arithmetic number, because the mean of its divisors is an integer number (58945425).

Almost surely, 2^235720481 is an apocalyptic number.

It is an amenable number.

235720481 is a deficient number, since it is larger than the sum of its proper divisors (61219).

235720481 is an equidigital number, since it uses as much as digits as its factorization.

235720481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61218.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 235720481 is about 15353.1912317928. The cubic root of 235720481 is about 617.7305872811.

The spelling of 235720481 in words is "two hundred thirty-five million, seven hundred twenty thousand, four hundred eighty-one".