245235539 has 2 divisors, whose sum is σ = 245235540. Its totient is φ = 245235538.

The previous prime is 245235533. The next prime is 245235581. The reversal of 245235539 is 935532542.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-245235539 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (245235533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122617769 + 122617770.

It is an arithmetic number, because the mean of its divisors is an integer number (122617770).

Almost surely, 2^245235539 is an apocalyptic number.

245235539 is a deficient number, since it is larger than the sum of its proper divisors (1).

245235539 is an equidigital number, since it uses as much as digits as its factorization.

245235539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 162000, while the sum is 38.

The square root of 245235539 is about 15659.9980523626. The cubic root of 245235539 is about 625.9329333371.

The spelling of 245235539 in words is "two hundred forty-five million, two hundred thirty-five thousand, five hundred thirty-nine".