313432481 has 2 divisors, whose sum is σ = 313432482. Its totient is φ = 313432480.

The previous prime is 313432433. The next prime is 313432501. The reversal of 313432481 is 184234313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210714256 + 102718225 = 14516^2 + 10135^2 .

It is a cyclic number.

It is not a de Polignac number, because 313432481 - 2¹⁸ = 313170337 is a prime.

It is a super-2 number, since 2×313432481² = 196479840291630722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313432081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156716240 + 156716241.

It is an arithmetic number, because the mean of its divisors is an integer number (156716241).

Almost surely, 2^313432481 is an apocalyptic number.

It is an amenable number.

313432481 is a deficient number, since it is larger than the sum of its proper divisors (1).

313432481 is an equidigital number, since it uses as much as digits as its factorization.

313432481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 29.

The square root of 313432481 is about 17704.0244294906. The cubic root of 313432481 is about 679.2787053292.

Adding to 313432481 its reverse (184234313), we get a palindrome (497666794).

The spelling of 313432481 in words is "three hundred thirteen million, four hundred thirty-two thousand, four hundred eighty-one".