240254243 has 2 divisors, whose sum is σ = 240254244. Its totient is φ = 240254242.

The previous prime is 240254239. The next prime is 240254249. The reversal of 240254243 is 342452042.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240254243 - 2² = 240254239 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (240254249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120127121 + 120127122.

It is an arithmetic number, because the mean of its divisors is an integer number (120127122).

Almost surely, 2^240254243 is an apocalyptic number.

240254243 is a deficient number, since it is larger than the sum of its proper divisors (1).

240254243 is an equidigital number, since it uses as much as digits as its factorization.

240254243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 240254243 is about 15500.1368703634. The cubic root of 240254243 is about 621.6658660018.

The spelling of 240254243 in words is "two hundred forty million, two hundred fifty-four thousand, two hundred forty-three".