245127455539 has 2 divisors, whose sum is σ = 245127455540. Its totient is φ = 245127455538.

The previous prime is 245127455509. The next prime is 245127455663. The reversal of 245127455539 is 935554721542.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 245127455539 - 2¹⁷ = 245127324467 is a prime.

It is not a weakly prime, because it can be changed into another prime (245127455509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122563727769 + 122563727770.

It is an arithmetic number, because the mean of its divisors is an integer number (122563727770).

Almost surely, 2^245127455539 is an apocalyptic number.

245127455539 is a deficient number, since it is larger than the sum of its proper divisors (1).

245127455539 is an equidigital number, since it uses as much as digits as its factorization.

245127455539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7560000, while the sum is 52.

The spelling of 245127455539 in words is "two hundred forty-five billion, one hundred twenty-seven million, four hundred fifty-five thousand, five hundred thirty-nine".