150165445 has 4 divisors (see below), whose sum is σ = 180198540. Its totient is φ = 120132352.

The previous prime is 150165439. The next prime is 150165473. The reversal of 150165445 is 544561051.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 544561051 = 17 ⋅32033003.

It can be written as a sum of positive squares in 2 ways, for example, as 24344356 + 125821089 = 4934^2 + 11217^2 .

It is a cyclic number.

It is not a de Polignac number, because 150165445 - 2⁷ = 150165317 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 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, 15016540 + ... + 15016549.

It is an arithmetic number, because the mean of its divisors is an integer number (45049635).

Almost surely, 2^150165445 is an apocalyptic number.

It is an amenable number.

150165445 is a deficient number, since it is larger than the sum of its proper divisors (30033095).

150165445 is an equidigital number, since it uses as much as digits as its factorization.

150165445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30033094.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 150165445 is about 12254.2011163519. The cubic root of 150165445 is about 531.5245589785.

The spelling of 150165445 in words is "one hundred fifty million, one hundred sixty-five thousand, four hundred forty-five".