150646 has 4 divisors (see below), whose sum is σ = 225972. Its totient is φ = 75322.

The previous prime is 150617. The next prime is 150649. The reversal of 150646 is 646051.

150646 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 is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150649) by changing a digit.

150646 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37660 + ... + 37663.

It is an arithmetic number, because the mean of its divisors is an integer number (56493).

2¹⁵⁰⁶⁴⁶ is an apocalyptic number.

150646 is a deficient number, since it is larger than the sum of its proper divisors (75326).

150646 is an equidigital number, since it uses as much as digits as its factorization.

150646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75325.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 150646 is about 388.1314210419. The cubic root of 150646 is about 53.2090944936.

Adding to 150646 its reverse (646051), we get a palindrome (796697).

The spelling of 150646 in words is "one hundred fifty thousand, six hundred forty-six".