312801025 has 12 divisors (see below), whose sum is σ = 388163772. Its totient is φ = 250053440.

The previous prime is 312801019. The next prime is 312801029. The reversal of 312801025 is 520108213.

It can be written as a sum of positive squares in 6 ways, for example, as 2900209 + 309900816 = 1703^2 + 17604^2 .

It is not a de Polignac number, because 312801025 - 2³ = 312801017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312800987 and 312801005.

It is not an unprimeable number, because it can be changed into a prime (312801029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36447 + ... + 44203.

It is an arithmetic number, because the mean of its divisors is an integer number (32346981).

Almost surely, 2^312801025 is an apocalyptic number.

It is an amenable number.

312801025 is a deficient number, since it is larger than the sum of its proper divisors (75362747).

312801025 is a wasteful number, since it uses less digits than its factorization.

312801025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380 (or 9375 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 312801025 is about 17686.1817529958. The cubic root of 312801025 is about 678.8222295715.

Adding to 312801025 its reverse (520108213), we get a palindrome (832909238).

The spelling of 312801025 in words is "three hundred twelve million, eight hundred one thousand, twenty-five".