313148081 has 4 divisors (see below), whose sum is σ = 323249664. Its totient is φ = 303046500.

The previous prime is 313148053. The next prime is 313148083. The reversal of 313148081 is 180841313.

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 313148081 - 2¹⁰ = 313147057 is a prime.

It is a super-2 number, since 2×313148081² = 196123441267965122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313148083) 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, 5050745 + ... + 5050806.

It is an arithmetic number, because the mean of its divisors is an integer number (80812416).

Almost surely, 2^313148081 is an apocalyptic number.

313148081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

313148081 is a deficient number, since it is larger than the sum of its proper divisors (10101583).

313148081 is a wasteful number, since it uses less digits than its factorization.

313148081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101582.

The product of its (nonzero) digits is 2304, while the sum is 29.

The square root of 313148081 is about 17695.9905345816. The cubic root of 313148081 is about 679.0731902280.

Adding to 313148081 its reverse (180841313), we get a palindrome (493989394).

The spelling of 313148081 in words is "three hundred thirteen million, one hundred forty-eight thousand, eighty-one".