201823097 has 4 divisors (see below), whose sum is σ = 230654976. Its totient is φ = 172991220.

The previous prime is 201823087. The next prime is 201823103. The reversal of 201823097 is 790328102.

201823097 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 201823097 - 2¹⁰ = 201822073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201823067) 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, 14415929 + ... + 14415942.

It is an arithmetic number, because the mean of its divisors is an integer number (57663744).

Almost surely, 2^201823097 is an apocalyptic number.

It is an amenable number.

201823097 is a deficient number, since it is larger than the sum of its proper divisors (28831879).

201823097 is an equidigital number, since it uses as much as digits as its factorization.

201823097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28831878.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 201823097 is about 14206.4456145793. The cubic root of 201823097 is about 586.5750983047.

The spelling of 201823097 in words is "two hundred one million, eight hundred twenty-three thousand, ninety-seven".