313201530 has 24 divisors (see below), whose sum is σ = 814324212. Its totient is φ = 83520384.

The previous prime is 313201517. The next prime is 313201549. The reversal of 313201530 is 35102313.

313201530 is a `hidden beast` number, since 3 + 132 + 0 + 1 + 530 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 299739969 + 13461561 = 17313^2 + 3669^2 .

It is a super-3 number, since 3×313201530³ (a number of 26 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1739919 + ... + 1740098.

Almost surely, 2^313201530 is an apocalyptic number.

313201530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

313201530 is an abundant number, since it is smaller than the sum of its proper divisors (501122682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313201530 is a wasteful number, since it uses less digits than its factorization.

313201530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3480030 (or 3480027 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 313201530 is about 17697.5006709987. The cubic root of 313201530 is about 679.1118234076. Note that the first 3 decimals are identical.

Adding to 313201530 its reverse (35102313), we get a palindrome (348303843).

The spelling of 313201530 in words is "three hundred thirteen million, two hundred one thousand, five hundred thirty".