312772001 has 4 divisors (see below), whose sum is σ = 331170372. Its totient is φ = 294373632.

The previous prime is 312771997. The next prime is 312772003. The reversal of 312772001 is 100277213.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 100277213 = 479 ⋅209347.

It can be written as a sum of positive squares in 2 ways, for example, as 219069601 + 93702400 = 14801^2 + 9680^2 .

It is not a de Polignac number, because 312772001 - 2² = 312771997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312772003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9199160 + ... + 9199193.

It is an arithmetic number, because the mean of its divisors is an integer number (82792593).

Almost surely, 2^312772001 is an apocalyptic number.

It is an amenable number.

312772001 is a deficient number, since it is larger than the sum of its proper divisors (18398371).

312772001 is a wasteful number, since it uses less digits than its factorization.

312772001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18398370.

The product of its (nonzero) digits is 588, while the sum is 23.

The square root of 312772001 is about 17685.3612063763. The cubic root of 312772001 is about 678.8012335344.

The spelling of 312772001 in words is "three hundred twelve million, seven hundred seventy-two thousand, one".