240254317 has 2 divisors, whose sum is σ = 240254318. Its totient is φ = 240254316.

The previous prime is 240254293. The next prime is 240254321. The reversal of 240254317 is 713452042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 170798761 + 69455556 = 13069^2 + 8334^2 .

It is a cyclic number.

It is not a de Polignac number, because 240254317 - 2¹⁵ = 240221549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240252317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120127158 + 120127159.

It is an arithmetic number, because the mean of its divisors is an integer number (120127159).

Almost surely, 2^240254317 is an apocalyptic number.

It is an amenable number.

240254317 is a deficient number, since it is larger than the sum of its proper divisors (1).

240254317 is an equidigital number, since it uses as much as digits as its factorization.

240254317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 240254317 is about 15500.1392574389. The cubic root of 240254317 is about 621.6659298276.

The spelling of 240254317 in words is "two hundred forty million, two hundred fifty-four thousand, three hundred seventeen".