1375015755173 has 4 divisors (see below), whose sum is σ = 1375023862380. Its totient is φ = 1375007647968.

The previous prime is 1375015755167. The next prime is 1375015755181. The reversal of 1375015755173 is 3715575105731.

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

It can be written as a sum of positive squares in 2 ways, for example, as 795275135524 + 579740619649 = 891782^2 + 761407^2 .

It is a cyclic number.

It is not a de Polignac number, because 1375015755173 - 2¹² = 1375015751077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1375015755163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3793640 + ... + 4140257.

It is an arithmetic number, because the mean of its divisors is an integer number (343755965595).

Almost surely, 2^{1375015755173} is an apocalyptic number.

It is an amenable number.

1375015755173 is a deficient number, since it is larger than the sum of its proper divisors (8107207).

1375015755173 is an equidigital number, since it uses as much as digits as its factorization.

1375015755173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8107206.

The product of its (nonzero) digits is 1929375, while the sum is 50.

The spelling of 1375015755173 in words is "one trillion, three hundred seventy-five billion, fifteen million, seven hundred fifty-five thousand, one hundred seventy-three".