240236461 has 2 divisors, whose sum is σ = 240236462. Its totient is φ = 240236460.

The previous prime is 240236459. The next prime is 240236467. The reversal of 240236461 is 164632042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 188540361 + 51696100 = 13731^2 + 7190^2 .

It is a cyclic number.

It is not a de Polignac number, because 240236461 - 2¹ = 240236459 is a prime.

Together with 240236459, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240236467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120118230 + 120118231.

It is an arithmetic number, because the mean of its divisors is an integer number (120118231).

Almost surely, 2^240236461 is an apocalyptic number.

It is an amenable number.

240236461 is a deficient number, since it is larger than the sum of its proper divisors (1).

240236461 is an equidigital number, since it uses as much as digits as its factorization.

240236461 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 240236461 is about 15499.5632519113. The cubic root of 240236461 is about 621.6505284508.

The spelling of 240236461 in words is "two hundred forty million, two hundred thirty-six thousand, four hundred sixty-one".