151789 has 4 divisors (see below), whose sum is σ = 165600. Its totient is φ = 137980.

The previous prime is 151787. The next prime is 151799. The reversal of 151789 is 987151.

151789 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 151789 - 2¹ = 151787 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 151789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151783) 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, 6889 + ... + 6910.

It is an arithmetic number, because the mean of its divisors is an integer number (41400).

2¹⁵¹⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

151789 is a deficient number, since it is larger than the sum of its proper divisors (13811).

151789 is a wasteful number, since it uses less digits than its factorization.

151789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13810.

The product of its digits is 2520, while the sum is 31.

The square root of 151789 is about 389.6010780273. The cubic root of 151789 is about 53.3433271203.

The spelling of 151789 in words is "one hundred fifty-one thousand, seven hundred eighty-nine".