205144102151 has 8 divisors (see below), whose sum is σ = 205472382480. Its totient is φ = 204815904832.

The previous prime is 205144102123. The next prime is 205144102199. The reversal of 205144102151 is 151201441502.

It is a happy number.

205144102151 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 205144102151 - 2¹⁸ = 205143840007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 205144102151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205144162151) 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 7 ways as a sum of consecutive naturals, for example, 6561011 + ... + 6592203.

It is an arithmetic number, because the mean of its divisors is an integer number (25684047810).

Almost surely, 2^205144102151 is an apocalyptic number.

205144102151 is a deficient number, since it is larger than the sum of its proper divisors (328280329).

205144102151 is an equidigital number, since it uses as much as digits as its factorization.

205144102151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41505.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 205144102151 its reverse (151201441502), we get a palindrome (356345543653).

The spelling of 205144102151 in words is "two hundred five billion, one hundred forty-four million, one hundred two thousand, one hundred fifty-one".