201799023 has 12 divisors (see below), whose sum is σ = 278526360. Its totient is φ = 129808336.

The previous prime is 201799021. The next prime is 201799049. The reversal of 201799023 is 320997102.

It is not a de Polignac number, because 201799023 - 2¹ = 201799021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201799021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 131740 + ... + 133262.

It is an arithmetic number, because the mean of its divisors is an integer number (23210530).

Almost surely, 2^201799023 is an apocalyptic number.

201799023 is a deficient number, since it is larger than the sum of its proper divisors (76727337).

201799023 is an frugal number, since it uses more digits than its factorization.

201799023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 201799023 is about 14205.5982978543. The cubic root of 201799023 is about 586.5517746273.

The spelling of 201799023 in words is "two hundred one million, seven hundred ninety-nine thousand, twenty-three".