313220134 has 4 divisors (see below), whose sum is σ = 469830204. Its totient is φ = 156610066.

The previous prime is 313220129. The next prime is 313220147. The reversal of 313220134 is 431022313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431022313 = 97 ⋅4443529.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78305032 + ... + 78305035.

It is an arithmetic number, because the mean of its divisors is an integer number (117457551).

Almost surely, 2^313220134 is an apocalyptic number.

313220134 is a deficient number, since it is larger than the sum of its proper divisors (156610070).

313220134 is a wasteful number, since it uses less digits than its factorization.

313220134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156610069.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 313220134 is about 17698.0262741358. The cubic root of 313220134 is about 679.1252694320.

Adding to 313220134 its reverse (431022313), we get a palindrome (744242447).

The spelling of 313220134 in words is "three hundred thirteen million, two hundred twenty thousand, one hundred thirty-four".