150545 has 4 divisors (see below), whose sum is σ = 180660. Its totient is φ = 120432.

The previous prime is 150533. The next prime is 150551. The reversal of 150545 is 545051.

It is a Cunningham number, because it is equal to 388²+1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 545051 = 13 ⋅41927.

It can be written as a sum of positive squares in 2 ways, for example, as 53824 + 96721 = 232^2 + 311^2 .

It is a cyclic number.

It is not a de Polignac number, because 150545 - 2¹⁰ = 149521 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15050 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (45165).

2¹⁵⁰⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

150545 is a deficient number, since it is larger than the sum of its proper divisors (30115).

150545 is an equidigital number, since it uses as much as digits as its factorization.

150545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30114.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 150545 is about 388.0012886577. The cubic root of 150545 is about 53.1972005612.

Adding to 150545 its reverse (545051), we get a palindrome (695596).

The spelling of 150545 in words is "one hundred fifty thousand, five hundred forty-five".