151801 has 4 divisors (see below), whose sum is σ = 163492. Its totient is φ = 140112.

The previous prime is 151799. The next prime is 151813. The reversal of 151801 is 108151.

151801 = 275² + 276².

151801 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 76176 + 75625 = 276^2 + 275^2 .

It is a cyclic number.

It is not a de Polignac number, because 151801 - 2¹ = 151799 is a prime.

It is a Duffinian number.

151801 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (151841) 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, 5826 + ... + 5851.

It is an arithmetic number, because the mean of its divisors is an integer number (40873).

2¹⁵¹⁸⁰¹ is an apocalyptic number.

151801 is the 276-th centered square number.

It is an amenable number.

151801 is a deficient number, since it is larger than the sum of its proper divisors (11691).

151801 is a wasteful number, since it uses less digits than its factorization.

151801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11690.

The product of its (nonzero) digits is 40, while the sum is 16.

The square root of 151801 is about 389.6164780910. The cubic root of 151801 is about 53.3447328064.

Adding to 151801 its reverse (108151), we get a palindrome (259952).

The spelling of 151801 in words is "one hundred fifty-one thousand, eight hundred one".