312066645 has 32 divisors (see below), whose sum is σ = 568387584. Its totient is φ = 144724800.

The previous prime is 312066641. The next prime is 312066701. The reversal of 312066645 is 546660213.

It is not a de Polignac number, because 312066645 - 2² = 312066641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312066641) 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 31 ways as a sum of consecutive naturals, for example, 37321 + ... + 44910.

It is an arithmetic number, because the mean of its divisors is an integer number (17762112).

Almost surely, 2^312066645 is an apocalyptic number.

It is an amenable number.

312066645 is a deficient number, since it is larger than the sum of its proper divisors (256320939).

312066645 is a wasteful number, since it uses less digits than its factorization.

312066645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82273.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 312066645 is about 17665.4081469973. The cubic root of 312066645 is about 678.2905773200.

The spelling of 312066645 in words is "three hundred twelve million, sixty-six thousand, six hundred forty-five".