1299171417245 has 16 divisors (see below), whose sum is σ = 1733088225792. Its totient is φ = 928440118080.

The previous prime is 1299171417221. The next prime is 1299171417277. The reversal of 1299171417245 is 5427141719921.

It is a happy number.

It is not a de Polignac number, because 1299171417245 - 2¹² = 1299171413149 is a prime.

It is a super-3 number, since 3×1299171417245³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 322373027 + ... + 322377056.

It is an arithmetic number, because the mean of its divisors is an integer number (108318014112).

Almost surely, 2^{1299171417245} is an apocalyptic number.

It is an amenable number.

1299171417245 is a deficient number, since it is larger than the sum of its proper divisors (433916808547).

1299171417245 is a wasteful number, since it uses less digits than its factorization.

1299171417245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644750132.

The product of its digits is 1270080, while the sum is 53.

The spelling of 1299171417245 in words is "one trillion, two hundred ninety-nine billion, one hundred seventy-one million, four hundred seventeen thousand, two hundred forty-five".