151205 has 4 divisors (see below), whose sum is σ = 181452. Its totient is φ = 120960.

The previous prime is 151201. The next prime is 151213. The reversal of 151205 is 502151.

151205 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.

It can be written as a sum of positive squares in 2 ways, for example, as 37636 + 113569 = 194^2 + 337^2 .

It is not a de Polignac number, because 151205 - 2² = 151201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a zygodrome in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 151205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151201) 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, 15116 + ... + 15125.

It is an arithmetic number, because the mean of its divisors is an integer number (45363).

2¹⁵¹²⁰⁵ is an apocalyptic number.

It is an amenable number.

151205 is a deficient number, since it is larger than the sum of its proper divisors (30247).

151205 is an equidigital number, since it uses as much as digits as its factorization.

151205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30246.

The product of its (nonzero) digits is 50, while the sum is 14.

The square root of 151205 is about 388.8508711576. The cubic root of 151205 is about 53.2748273362.

Adding to 151205 its reverse (502151), we get a palindrome (653356).

The spelling of 151205 in words is "one hundred fifty-one thousand, two hundred five".