1225717128175 has 6 divisors (see below), whose sum is σ = 1519889238968. Its totient is φ = 980573702520.

The previous prime is 1225717128149. The next prime is 1225717128227. The reversal of 1225717128175 is 5718217175221.

It is not a de Polignac number, because 1225717128175 - 2¹⁷ = 1225716997103 is a prime.

It is a super-4 number, since 4×1225717128175⁴ (a number of 49 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24514342539 + ... + 24514342588.

Almost surely, 2^{1225717128175} is an apocalyptic number.

1225717128175 is a deficient number, since it is larger than the sum of its proper divisors (294172110793).

1225717128175 is an equidigital number, since it uses as much as digits as its factorization.

1225717128175 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49028685137 (or 49028685132 counting only the distinct ones).

The product of its digits is 548800, while the sum is 49.

The spelling of 1225717128175 in words is "one trillion, two hundred twenty-five billion, seven hundred seventeen million, one hundred twenty-eight thousand, one hundred seventy-five".