1315260850173 has 4 divisors (see below), whose sum is σ = 1753681133568. Its totient is φ = 876840566780.

The previous prime is 1315260850157. The next prime is 1315260850229. The reversal of 1315260850173 is 3710580625131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1315260850173 - 2⁴ = 1315260850157 is a prime.

It is a super-2 number, since 2×1315260850173² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1315260850373) 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, 219210141693 + ... + 219210141698.

It is an arithmetic number, because the mean of its divisors is an integer number (438420283392).

Almost surely, 2^{1315260850173} is an apocalyptic number.

It is an amenable number.

1315260850173 is a deficient number, since it is larger than the sum of its proper divisors (438420283395).

1315260850173 is an equidigital number, since it uses as much as digits as its factorization.

1315260850173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 438420283394.

The product of its (nonzero) digits is 151200, while the sum is 42.

The spelling of 1315260850173 in words is "one trillion, three hundred fifteen billion, two hundred sixty million, eight hundred fifty thousand, one hundred seventy-three".