201240093 has 4 divisors (see below), whose sum is σ = 268320128. Its totient is φ = 134160060.

The previous prime is 201240089. The next prime is 201240113. The reversal of 201240093 is 390042102.

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 not a de Polignac number, because 201240093 - 2² = 201240089 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201240293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33540013 + ... + 33540018.

It is an arithmetic number, because the mean of its divisors is an integer number (67080032).

Almost surely, 2^201240093 is an apocalyptic number.

It is an amenable number.

201240093 is a deficient number, since it is larger than the sum of its proper divisors (67080035).

201240093 is an equidigital number, since it uses as much as digits as its factorization.

201240093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67080034.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 201240093 is about 14185.9117789446. The cubic root of 201240093 is about 586.0097427199.

Adding to 201240093 its reverse (390042102), we get a palindrome (591282195).

The spelling of 201240093 in words is "two hundred one million, two hundred forty thousand, ninety-three".