150198493 has 4 divisors (see below), whose sum is σ = 150441760. Its totient is φ = 149955228.

The previous prime is 150198491. The next prime is 150198509. The reversal of 150198493 is 394891051.

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, and also an emirpimes, since its reverse is a distinct semiprime: 394891051 = 31 ⋅12738421.

It is a cyclic number.

It is not a de Polignac number, because 150198493 - 2¹ = 150198491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (150198491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120705 + ... + 121942.

It is an arithmetic number, because the mean of its divisors is an integer number (37610440).

Almost surely, 2^150198493 is an apocalyptic number.

It is an amenable number.

150198493 is a deficient number, since it is larger than the sum of its proper divisors (243267).

150198493 is an equidigital number, since it uses as much as digits as its factorization.

150198493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243266.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 150198493 is about 12255.5494776856. The cubic root of 150198493 is about 531.5635482750.

The spelling of 150198493 in words is "one hundred fifty million, one hundred ninety-eight thousand, four hundred ninety-three".