245015489 has 2 divisors, whose sum is σ = 245015490. Its totient is φ = 245015488.

The previous prime is 245015483. The next prime is 245015497. The reversal of 245015489 is 984510542.

245015489 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 240250000 + 4765489 = 15500^2 + 2183^2 .

It is a cyclic number.

It is not a de Polignac number, because 245015489 - 2⁸ = 245015233 is a prime.

It is not a weakly prime, because it can be changed into another prime (245015483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122507744 + 122507745.

It is an arithmetic number, because the mean of its divisors is an integer number (122507745).

Almost surely, 2^245015489 is an apocalyptic number.

It is an amenable number.

245015489 is a deficient number, since it is larger than the sum of its proper divisors (1).

245015489 is an equidigital number, since it uses as much as digits as its factorization.

245015489 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 245015489 is about 15652.9706126345. The cubic root of 245015489 is about 625.7456606439.

The spelling of 245015489 in words is "two hundred forty-five million, fifteen thousand, four hundred eighty-nine".