9012020705 has 8 divisors (see below), whose sum is σ = 11450567592. Its totient is φ = 6785521408.

The previous prime is 9012020683. The next prime is 9012020749. The reversal of 9012020705 is 5070202109.

It can be written as a sum of positive squares in 4 ways, for example, as 4639108321 + 4372912384 = 68111^2 + 66128^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9012020705 - 2⁸ = 9012020449 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 53011802 + ... + 53011971.

It is an arithmetic number, because the mean of its divisors is an integer number (1431320949).

Almost surely, 2^9012020705 is an apocalyptic number.

It is an amenable number.

9012020705 is a deficient number, since it is larger than the sum of its proper divisors (2438546887).

9012020705 is a wasteful number, since it uses less digits than its factorization.

9012020705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106023795.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 9012020705 is about 94931.6633426382. The cubic root of 9012020705 is about 2081.0094878730.

The spelling of 9012020705 in words is "nine billion, twelve million, twenty thousand, seven hundred five".