313138534 has 16 divisors (see below), whose sum is σ = 481111488. Its totient is φ = 152787712.

The previous prime is 313138531. The next prime is 313138543. The reversal of 313138534 is 435831313.

313138534 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 313138496 and 313138505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313138531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28464 + ... + 37900.

It is an arithmetic number, because the mean of its divisors is an integer number (30069468).

Almost surely, 2^313138534 is an apocalyptic number.

313138534 is a deficient number, since it is larger than the sum of its proper divisors (167972954).

313138534 is a wasteful number, since it uses less digits than its factorization.

313138534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9839.

The product of its digits is 12960, while the sum is 31.

The square root of 313138534 is about 17695.7207821552. The cubic root of 313138534 is about 679.0662891504.

Adding to 313138534 its reverse (435831313), we get a palindrome (748969847).

The spelling of 313138534 in words is "three hundred thirteen million, one hundred thirty-eight thousand, five hundred thirty-four".