243125445487 has 2 divisors, whose sum is σ = 243125445488. Its totient is φ = 243125445486.

The previous prime is 243125445439. The next prime is 243125445499. The reversal of 243125445487 is 784544521342.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243125445487 - 2¹¹ = 243125443439 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 243125445487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243125448487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121562722743 + 121562722744.

It is an arithmetic number, because the mean of its divisors is an integer number (121562722744).

Almost surely, 2^243125445487 is an apocalyptic number.

243125445487 is a deficient number, since it is larger than the sum of its proper divisors (1).

243125445487 is an equidigital number, since it uses as much as digits as its factorization.

243125445487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4300800, while the sum is 49.

The spelling of 243125445487 in words is "two hundred forty-three billion, one hundred twenty-five million, four hundred forty-five thousand, four hundred eighty-seven".