245131589 has 2 divisors, whose sum is σ = 245131590. Its totient is φ = 245131588.

The previous prime is 245131573. The next prime is 245131637. The reversal of 245131589 is 985131542.

It is a happy number.

245131589 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., 186868900 + 58262689 = 13670^2 + 7633^2 .

It is a cyclic number.

It is not a de Polignac number, because 245131589 - 2⁴ = 245131573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (245131529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122565794 + 122565795.

It is an arithmetic number, because the mean of its divisors is an integer number (122565795).

Almost surely, 2^245131589 is an apocalyptic number.

It is an amenable number.

245131589 is a deficient number, since it is larger than the sum of its proper divisors (1).

245131589 is an equidigital number, since it uses as much as digits as its factorization.

245131589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43200, while the sum is 38.

The square root of 245131589 is about 15656.6787346487. The cubic root of 245131589 is about 625.8444810622.

The spelling of 245131589 in words is "two hundred forty-five million, one hundred thirty-one thousand, five hundred eighty-nine".