240736091 has 2 divisors, whose sum is σ = 240736092. Its totient is φ = 240736090.

The previous prime is 240736087. The next prime is 240736117. The reversal of 240736091 is 190637042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240736091 - 2² = 240736087 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240736291) 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, 120368045 + 120368046.

It is an arithmetic number, because the mean of its divisors is an integer number (120368046).

Almost surely, 2^240736091 is an apocalyptic number.

240736091 is a deficient number, since it is larger than the sum of its proper divisors (1).

240736091 is an equidigital number, since it uses as much as digits as its factorization.

240736091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 240736091 is about 15515.6724314481. The cubic root of 240736091 is about 622.0811877288.

The spelling of 240736091 in words is "two hundred forty million, seven hundred thirty-six thousand, ninety-one".