240551489 has 2 divisors, whose sum is σ = 240551490. Its totient is φ = 240551488.

The previous prime is 240551473. The next prime is 240551557. The reversal of 240551489 is 984155042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 158558464 + 81993025 = 12592^2 + 9055^2 .

It is a cyclic number.

It is not a de Polignac number, because 240551489 - 2⁴ = 240551473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (240551449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120275744 + 120275745.

It is an arithmetic number, because the mean of its divisors is an integer number (120275745).

Almost surely, 2^240551489 is an apocalyptic number.

It is an amenable number.

240551489 is a deficient number, since it is larger than the sum of its proper divisors (1).

240551489 is an equidigital number, since it uses as much as digits as its factorization.

240551489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 57600, while the sum is 38.

The square root of 240551489 is about 15509.7224024158. The cubic root of 240551489 is about 621.9221383222.

The spelling of 240551489 in words is "two hundred forty million, five hundred fifty-one thousand, four hundred eighty-nine".