313540522 has 4 divisors (see below), whose sum is σ = 470310786. Its totient is φ = 156770260.

The previous prime is 313540519. The next prime is 313540561. The reversal of 313540522 is 225045313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 225045313 = 281 ⋅800873.

It can be written as a sum of positive squares in only one way, i.e., 308740041 + 4800481 = 17571^2 + 2191^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78385129 + ... + 78385132.

Almost surely, 2^313540522 is an apocalyptic number.

313540522 is a deficient number, since it is larger than the sum of its proper divisors (156770264).

313540522 is a wasteful number, since it uses less digits than its factorization.

313540522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156770263.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 313540522 is about 17707.0754784634. The cubic root of 313540522 is about 679.3567460813.

Adding to 313540522 its reverse (225045313), we get a palindrome (538585835).

The spelling of 313540522 in words is "three hundred thirteen million, five hundred forty thousand, five hundred twenty-two".