150445 has 4 divisors (see below), whose sum is σ = 180540. Its totient is φ = 120352.

The previous prime is 150439. The next prime is 150473. The reversal of 150445 is 544051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544051 = 17 ⋅32003.

It can be written as a sum of positive squares in 2 ways, for example, as 64009 + 86436 = 253^2 + 294^2 .

It is a cyclic number.

It is not a de Polignac number, because 150445 - 2⁵ = 150413 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, 15040 + ... + 15049.

It is an arithmetic number, because the mean of its divisors is an integer number (45135).

2¹⁵⁰⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

150445 is a deficient number, since it is larger than the sum of its proper divisors (30095).

150445 is an equidigital number, since it uses as much as digits as its factorization.

150445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30094.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 150445 is about 387.8724016993. The cubic root of 150445 is about 53.1854191484.

Subtracting from 150445 its sum of digits (19), we obtain a triangular number (150426 = T₅₄₈).

Adding to 150445 its reverse (544051), we get a palindrome (694496).

It can be divided in two parts, 150 and 445, that added together give a palindrome (595).

The spelling of 150445 in words is "one hundred fifty thousand, four hundred forty-five".