201073709 has 4 divisors (see below), whose sum is σ = 201281760. Its totient is φ = 200865660.

The previous prime is 201073699. The next prime is 201073721. The reversal of 201073709 is 907370102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 201073709 - 2⁴ = 201073693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201073759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 102569 + ... + 104510.

It is an arithmetic number, because the mean of its divisors is an integer number (50320440).

Almost surely, 2^201073709 is an apocalyptic number.

It is an amenable number.

201073709 is a deficient number, since it is larger than the sum of its proper divisors (208051).

201073709 is an equidigital number, since it uses as much as digits as its factorization.

201073709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208050.

The product of its (nonzero) digits is 2646, while the sum is 29.

The square root of 201073709 is about 14180.0461564834. The cubic root of 201073709 is about 585.8481951750.

The spelling of 201073709 in words is "two hundred one million, seventy-three thousand, seven hundred nine".