240712091 has 2 divisors, whose sum is σ = 240712092. Its totient is φ = 240712090.

The previous prime is 240712079. The next prime is 240712097. The reversal of 240712091 is 190217042.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 240712091 - 2¹⁸ = 240449947 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 240712091.

It is not a weakly prime, because it can be changed into another prime (240712097) 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, 120356045 + 120356046.

It is an arithmetic number, because the mean of its divisors is an integer number (120356046).

Almost surely, 2^240712091 is an apocalyptic number.

240712091 is a deficient number, since it is larger than the sum of its proper divisors (1).

240712091 is an equidigital number, since it uses as much as digits as its factorization.

240712091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 240712091 is about 15514.8990006381. The cubic root of 240712091 is about 622.0605144061.

It can be divided in two parts, 24071 and 2091, that added together give a palindrome (26162).

The spelling of 240712091 in words is "two hundred forty million, seven hundred twelve thousand, ninety-one".