240535481 has 2 divisors, whose sum is σ = 240535482. Its totient is φ = 240535480.

The previous prime is 240535447. The next prime is 240535489. The reversal of 240535481 is 184535042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 240529081 + 6400 = 15509^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 240535481 - 2²² = 236341177 is a prime.

It is a super-2 number, since 2×240535481² = 115714635239802722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (240535489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120267740 + 120267741.

It is an arithmetic number, because the mean of its divisors is an integer number (120267741).

Almost surely, 2^240535481 is an apocalyptic number.

It is an amenable number.

240535481 is a deficient number, since it is larger than the sum of its proper divisors (1).

240535481 is an equidigital number, since it uses as much as digits as its factorization.

240535481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19200, while the sum is 32.

The square root of 240535481 is about 15509.2063304348. The cubic root of 240535481 is about 621.9083423147.

The spelling of 240535481 in words is "two hundred forty million, five hundred thirty-five thousand, four hundred eighty-one".