316195148813 has 4 divisors (see below), whose sum is σ = 316438939740. Its totient is φ = 315951357888.

The previous prime is 316195148767. The next prime is 316195148837. The reversal of 316195148813 is 318841591613.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 318841591613 = 107 ⋅2979827959.

It can be written as a sum of positive squares in 2 ways, for example, as 231165755209 + 85029393604 = 480797^2 + 291598^2 .

It is a cyclic number.

It is not a de Polignac number, because 316195148813 - 2¹⁰ = 316195147789 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 (316195145813) 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, 121893518 + ... + 121896111.

It is an arithmetic number, because the mean of its divisors is an integer number (79109734935).

Almost surely, 2^316195148813 is an apocalyptic number.

It is an amenable number.

316195148813 is a deficient number, since it is larger than the sum of its proper divisors (243790927).

316195148813 is a wasteful number, since it uses less digits than its factorization.

316195148813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243790926.

The product of its digits is 622080, while the sum is 50.

The spelling of 316195148813 in words is "three hundred sixteen billion, one hundred ninety-five million, one hundred forty-eight thousand, eight hundred thirteen".