205140363 has 8 divisors (see below), whose sum is σ = 273628368. Its totient is φ = 136706304.

The previous prime is 205140349. The next prime is 205140391. The reversal of 205140363 is 363041502.

It is a happy number.

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

It is not a de Polignac number, because 205140363 - 2⁸ = 205140107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205140323) by changing a digit.

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, 3570 + ... + 20567.

It is an arithmetic number, because the mean of its divisors is an integer number (34203546).

Almost surely, 2^205140363 is an apocalyptic number.

205140363 is a deficient number, since it is larger than the sum of its proper divisors (68488005).

205140363 is a wasteful number, since it uses less digits than its factorization.

205140363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26973.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 205140363 is about 14322.7219131002. The cubic root of 205140363 is about 589.7713975997.

Adding to 205140363 its reverse (363041502), we get a palindrome (568181865).

The spelling of 205140363 in words is "two hundred five million, one hundred forty thousand, three hundred sixty-three".