1245889014459 has 4 divisors (see below), whose sum is σ = 1661185352616. Its totient is φ = 830592676304.

The previous prime is 1245889014443. The next prime is 1245889014493. The reversal of 1245889014459 is 9544109885421.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1245889014459 - 2⁴ = 1245889014443 is a prime.

It is a super-2 number, since 2×1245889014459² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1245889010459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207648169074 + ... + 207648169079.

It is an arithmetic number, because the mean of its divisors is an integer number (415296338154).

Almost surely, 2^{1245889014459} is an apocalyptic number.

1245889014459 is a deficient number, since it is larger than the sum of its proper divisors (415296338157).

1245889014459 is an equidigital number, since it uses as much as digits as its factorization.

1245889014459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415296338156.

The product of its (nonzero) digits is 16588800, while the sum is 60.

The spelling of 1245889014459 in words is "one trillion, two hundred forty-five billion, eight hundred eighty-nine million, fourteen thousand, four hundred fifty-nine".